Planarian Anatomy (PLANA) Ontology Terms

This table contains a list of anatomical terms, called classes, and definitions that were coined or adapted for Schmidtea mediterranea for incorporation into the Planarian Anatomy Ontology (PLANA). Classes are in compliance with OBO Foundry and contain the Ontology Prefix PLANA. PLANA provides users with a controlled vocabulary and relationships among classes for describing planarian anatomical features. PLANA is a living document and thus is not comprehensive, and will be expanded upon in the future to include additional structures, tissue and cell types.‚Äč If you find an error or a missing structure, please suggest edits and additions here

Classes with a star (☆) indicate pages with in-depth written descriptions, associated supplemental figures, in situ hybridization images and sequences for transcripts validated by WISH.

  
termdefinition
Stage 3-5 embryo hemisphere centered around the pole opposite the embryonic pharynx.
Expand aboral hemisphere relations
                    aboral hemisphere is a embryonic subdivision 
                    aboral hemisphere is a independent continuant 
                    aboral hemisphere existence overlaps Stage 3 
                    aboral hemisphere existence overlaps Stage 4 
                    aboral hemisphere existence overlaps Stage 5 
                    aboral hemisphere existence overlaps Stage 6 
                    aboral hemisphere existence starts during or after Stage 3 
                    aboral hemisphere existence ends during or before Stage 6 
                    aboral hemisphere existence ends during or before Stage 6 
One of two distinct histochemical classes of gland cells, these can be found throughout the body but primarily form clusters of subepidermal marginal adhesive glands along the dorsoventral border of the animal.
Expand acidophilic gland cell relations
                    acidophilic gland cell is a gland cell 
A cell projection supported by an assembly of actin filaments.
Expand actin-based cell projection relations
                    actin-based cell projection is a cell projection 
Rhabdites that are located basally to the epidermis, in the mesenchyme. In Smed these are present in cells likely on their way to becoming part of the mature epidermis.
Expand adenal rhabdite relations
                    adenal rhabdite is a independent continuant 
                    adenal rhabdite is a rhabdite 
                    adenal rhabdite existence overlaps adult hermaphrodite 
                    adenal rhabdite existence overlaps asexual adult 
                    adenal rhabdite existence overlaps juvenile 
                    adenal rhabdite part of dorsal epidermis progenitor cell 
                    adenal rhabdite part of ventral epidermis progenitor cell 
A cell junction at which anchoring proteins (cadherins or integrins) extend through the plasma membrane and are attached to actin filaments.
Expand adherens junction relations
                    adherens junction is a cell junction 
                    adherens junction part of cell-cell adhesion 
Groupings of specialized epithelial cells located along the dorsal ventral margin. Adhesion glands are comprised of three cell types, the viscid and releasing gland cells which penetrate through an epithelial anchor cell and terminate at the epidermal surface.
Expand adhesion gland relations
                    adhesion gland is a material entity 
                    adhesion gland is a tissue 
                    adhesion gland existence overlaps adult hermaphrodite 
                    adhesion gland existence overlaps asexual adult 
                    adhesion gland existence overlaps juvenile 
                    adhesion gland part of secretory system 
                    adhesion gland contained in anterior region of the whole animal 
                    adhesion gland contained in copulatory region 
                    adhesion gland contained in dorsal ventral margin of the whole animal 
                    adhesion gland contained in head 
                    adhesion gland contained in parapharyngeal region 
                    adhesion gland contained in posterior region of the whole animal 
                    adhesion gland contained in prepharyngeal region 
                    adhesion gland contained in tail 
cell which is part of the adhesion gland
Finger-like processes at the terminal pore of adhesive gland cells around the marginal adhesive zone. They protrude past the epidermis and are longer microvilli, and shorter than cilia.
Expand adhesive papilla relations
                    adhesive papilla is a cell projection 
                    adhesive papilla is a material entity 
                    adhesive papilla existence overlaps adult hermaphrodite 
                    adhesive papilla existence overlaps asexual adult 
                    adhesive papilla existence overlaps juvenile 
                    adhesive papilla part of releasing gland cell 
                    adhesive papilla part of viscid gland cell 
                    adhesive papilla contained in dorsal ventral margin of the whole animal 
                    adhesive papilla contained in marginal adhesive zone 
A fully formed, sexually mature organism that reproduces through cross-fertilization.
Expand adult hermaphrodite relations
                    adult hermaphrodite is a life cycle stage 
                    adult hermaphrodite is a obsolete Schmidtea mediterranea developmental stage 
                    adult hermaphrodite specific to Smed sexual biotype 
A neuron which conveys sensory information centrally from the periphery.
Expand afferent neuron relations
                    afferent neuron is a neuron 
                    afferent neuron part of central nervous system 
                    afferent neuron part of peripheral nervous system 
A wound resulting in two or more separate tissue fragments.
Expand amputation relations
                    amputation is a cut 
germ cell cyst undergoing mitotic anaphase
Expand anaphase germ cell cyst relations
                    anaphase germ cell cyst is a germ cell cyst 
                    anaphase germ cell cyst contains process mitotic anaphase 
neoblast undergoing mitotic anaphase
Expand anaphase neoblast relations
                    anaphase neoblast is a neoblast 
                    anaphase neoblast contains process mitotic anaphase 
oogonial cell undergoing mitotic anaphase
Expand anaphase oogonial cell relations
                    anaphase oogonial cell is a oogonial cell 
                    anaphase oogonial cell contains process mitotic anaphase 
oogonial stem cell undergoing mitotic anaphase
Expand anaphase oogonial stem cell relations
                    anaphase oogonial stem cell is a oogonial stem cell 
                    anaphase oogonial stem cell contains process mitotic anaphase 
spermatogonium undergoing mitotic anaphase
Expand anaphase spermatogonia relations
                    anaphase spermatogonia is a spermatogonium 
                    anaphase spermatogonia contains process mitotic anaphase 
spermatogonial stem cell undergoing mitotic anaphase
Expand anaphase spermatogonial stem cell relations
                    anaphase spermatogonial stem cell is a spermatogonial stem cell 
                    anaphase spermatogonial stem cell contains process mitotic anaphase 
A subdivision of an anatomical compartment.
Expand anatomical region relations
                    anatomical region is a organism subdivision 
Multicellular, connected anatomical structure that has multiple organs as parts and whose parts work together to achieve some shared function.
Expand anatomical system relations
                    anatomical system is a multicellular anatomical structure 
Specialized epithelial cell located along the dorsoventral margin that surrounds the viscid and releasing gland cells.
Expand anchor cell relations
                    anchor cell is a acidophilic gland cell 
                    anchor cell is a material entity 
                    anchor cell existence overlaps adult hermaphrodite 
                    anchor cell existence overlaps asexual adult 
                    anchor cell existence overlaps juvenile 
                    anchor cell part of adhesion gland 
                    anchor cell contained in anterior region of the whole animal 
                    anchor cell contained in copulatory region 
                    anchor cell contained in dorsal ventral margin of the whole animal 
                    anchor cell contained in head 
                    anchor cell contained in parapharyngeal region 
                    anchor cell contained in posterior region of the whole animal 
                    anchor cell contained in prepharyngeal region 
                    anchor cell contained in tail 
A bundle of nerve fibers connecting the two cephalic ganglia.
Expand anterior commissure relations
                    anterior commissure is a brain commissure 
                    anterior commissure existence overlaps adult hermaphrodite 
                    anterior commissure existence overlaps asexual adult 
                    anterior commissure existence overlaps juvenile 
A fragment encompassing all or part of the anterior region of the animal.
Expand anterior fragment relations
                    anterior fragment is a fragment 
                    anterior fragment RO:0001000 anterior region 
A branch of the triclad gut located anterior to the pharynx.
Expand anterior gut branch relations
                    anterior gut branch is a gut branch 
                    anterior gut branch is a material entity 
                    anterior gut branch existence overlaps Stage 7 
                    anterior gut branch existence overlaps Stage 8 
                    anterior gut branch existence starts during or after Stage 7 
                    anterior gut branch contained in anterior region of the whole animal 
                    anterior gut branch contained in dorsal region of the whole animal 
                    anterior gut branch contained in head 
                    anterior gut branch contained in prepharyngeal region 
                    anterior gut branch contained in ventral region of the whole animal 
anterior region of the eye of photoreceptor neuron
Expand anterior photoreceptor neuron relations
                    anterior photoreceptor neuron is a anterior region of the whole animal 
                    anterior photoreceptor neuron is a independent continuant 
                    anterior photoreceptor neuron is a posterior photoreceptor neuron 
                    anterior photoreceptor neuron part of photoreceptor neuron 
                    anterior photoreceptor neuron has component anterior region of the eye 
Distinct anterior cluster of muscle cells located at the midline which express notum, follistatin, zic-1, and foxD.
Expand anterior pole relations
                    anterior pole is a anatomical region 
                    anterior pole is a material entity 
                    anterior pole existence overlaps adult hermaphrodite 
                    anterior pole existence overlaps asexual adult 
                    anterior pole existence overlaps juvenile 
                    anterior pole existence overlaps Stage 7 
                    anterior pole existence overlaps Stage 8 
                    anterior pole contained in anterior region of the whole animal 
                    anterior pole contained in head 
                    anterior pole contained in midline 
cell which is part of the anterior pole
piwi-1+, foxD+, prep+ progenitor neoblasts required for formation of the anterior pole.
Expand anterior pole progenitor cell relations
                    anterior pole progenitor cell is a neoblast 
Axis that runs along the long axis of the animal from anterior (head) to posterior (tail). It is perpendicular to the dorsoventral axis and as such, it splits dorsal and ventral regions of the animal to either side.
Expand anterior-posterior axis of the whole animal relations
                    anterior-posterior axis of the whole animal is a continuant 
                    anterior-posterior axis of the whole animal part of whole organism 
                    anterior-posterior axis of the whole animal has component anterior-posterior axis 
The single, central gut branch of the triclad gut anterior to the pharynx.
Expand anterior primary gut branch relations
                    anterior primary gut branch is a material entity 
                    anterior primary gut branch is a primary gut branch 
                    anterior primary gut branch existence overlaps Stage 7 
                    anterior primary gut branch existence overlaps Stage 8 
                    anterior primary gut branch existence starts during or after Stage 7 
                    anterior primary gut branch contained in anterior region of the whole animal 
                    anterior primary gut branch contained in dorsal region of the whole animal 
                    anterior primary gut branch contained in head 
                    anterior primary gut branch contained in prepharyngeal region 
                    anterior primary gut branch contained in ventral region of the whole animal 
The anterior region of a fragment encompassing all or part of the anterior region of the animal.
Expand anterior region of anterior fragment relations
                    anterior region of anterior fragment is a posterior region of anterior fragment 
                    anterior region of anterior fragment part of anterior fragment 
                    anterior region of anterior fragment has component anterior region 
The anterior region of a fragment derived from a prepharyngeal amputation encompassing the head.
Expand anterior region of head fragment relations
                    anterior region of head fragment is a posterior region of head fragment 
                    anterior region of head fragment part of head fragment 
                    anterior region of head fragment has component anterior region 
The anterior region of a fragment derived from an amputation parallel to or along any edge, which overlaps the lateral region, dorso-lateral region, ventro-lateral region, antero-lateral margin, lateral margin, ventro-lateral margin, postero-lateral margin, dorso-lateral margin, antero-lateral region, postero-lateral region.
Expand anterior region of lateral fragment relations
                    anterior region of lateral fragment is a posterior region of lateral fragment 
                    anterior region of lateral fragment part of lateral fragment 
                    anterior region of lateral fragment has component anterior region 
The anterior region of a fragment derived from an amputation parallel to the midline.
Expand anterior region of longitudinal fragment relations
                    anterior region of longitudinal fragment is a posterior region of longitudinal fragment 
                    anterior region of longitudinal fragment part of longitudinal fragment 
                    anterior region of longitudinal fragment has component anterior region 
The anterior region of a 3D piece of tissue, usually though the whole depth of the animal encompassing both dorsal and ventral sides, often made with a biopsy punch.
Expand anterior region of plug fragment relations
                    anterior region of plug fragment is a posterior region of plug fragment 
                    anterior region of plug fragment part of plug fragment 
                    anterior region of plug fragment has component anterior region 
The anterior region of a fragment encompassing all or part of the posterior region of the animal.
Expand anterior region of posterior fragment relations
                    anterior region of posterior fragment is a posterior region of posterior fragment 
                    anterior region of posterior fragment part of posterior fragment 
                    anterior region of posterior fragment has component anterior region 
The anterior region of a fragment derived from two postpharyngeal amputations, removing the anterior region and the tail tip.
Expand anterior region of postpharyngeal fragment relations
                    anterior region of postpharyngeal fragment is a posterior region of postpharyngeal fragment 
                    anterior region of postpharyngeal fragment part of postpharyngeal fragment 
                    anterior region of postpharyngeal fragment has component anterior region 
The anterior region of a fragment derived from two prepharyngeal amputations, removing the head and posterior regions of the animal.
Expand anterior region of prepharyngeal fragment relations
                    anterior region of prepharyngeal fragment is a posterior region of prepharyngeal fragment 
                    anterior region of prepharyngeal fragment part of prepharyngeal fragment 
                    anterior region of prepharyngeal fragment has component anterior region 
The anterior region of a fragment derived from a postpharyngeal amputation encompassing the tail.
Expand anterior region of tail fragment relations
                    anterior region of tail fragment is a posterior region of tail fragment 
                    anterior region of tail fragment part of tail fragment 
                    anterior region of tail fragment has component anterior region 
The anterior region of the eye.
Expand anterior region of the eye relations
                    anterior region of the eye is a anterior region of the whole animal 
                    anterior region of the eye is a independent continuant 
                    anterior region of the eye part of eye 
Compartment along the anteroposterior axis closer to the head rather than the tail, from the head margin to the esophagus.
Expand anterior region of the whole animal relations
                    anterior region of the whole animal is a continuant 
                    anterior region of the whole animal part of whole organism 
                    anterior region of the whole animal has component anterior region 
The anterior region of a fragment derived from pre- and post-pharyngeal amputations, encompassing the pharynx and parapharyngeal region.
Expand anterior region of trunk fragment relations
                    anterior region of trunk fragment is a posterior region of trunk fragment 
                    anterior region of trunk fragment part of trunk fragment 
                    anterior region of trunk fragment has component anterior region 
The anterior region of a piece of tissue removed from the lateral margin at any given point that extendes interiorly to more medial structures.
Expand anterior region of wedge fragment relations
                    anterior region of wedge fragment is a posterior region of wedge fragment 
                    anterior region of wedge fragment part of wedge fragment 
                    anterior region of wedge fragment has component anterior region 
The anterior-medial region of the head margin.
Expand anterior tip relations
                    anterior tip is a anatomical region 
                    anterior tip is a material entity 
                    anterior tip existence overlaps adult hermaphrodite 
                    anterior tip existence overlaps asexual adult 
                    anterior tip existence overlaps juvenile 
                    anterior tip contained in anterior region of the whole animal 
                    anterior tip contained in head 
A chamber formation in an organ.
Expand antrum relations
                    antrum is a anatomical cavity 
The apical surface of the single layered epidermis that is in contact with the environment.
Expand apical surface of the epidermis relations
                    apical surface of the epidermis is a anatomical entity 
                    apical surface of the epidermis is a independent continuant 
                    apical surface of the epidermis part of epidermis 
                    apical surface of the epidermis has component apical surface 
Asexually reproducing Schmidtea mediterranea exist as constitutive adults, undergoing successive cycles of fission and whole animal regeneration. Asexual Schmidtea mediterranea contain primordial germ cells, but do not possess a reproductive system.
Expand asexual adult relations
                    asexual adult is a life cycle stage 
                    asexual adult is a obsolete Schmidtea mediterranea developmental stage 
                    asexual adult specific to Smed asexual biotype 
An individual member of the asexual biotype of Schmidtea mediterranea.
Expand asexual organism relations
                    asexual organism is a independent continuant 
                    asexual organism is a whole organism 
                    asexual organism develops from asexual organism 
A sense organ located along the dorsolateral head margin. The auricular groove is highly innervtated by ciliated sensory neurons, and has an altered epidermis devoid of rhabdites and gland cells.
Expand auricle relations
                    auricle is a material entity 
                    auricle is a organ 
                    auricle existence overlaps adult hermaphrodite 
                    auricle existence overlaps asexual adult 
                    auricle existence overlaps juvenile 
                    auricle part of peripheral nervous system 
                    auricle part of sensory system 
                    auricle contained in anterior region of the whole animal 
                    auricle contained in dorsal region of the whole animal 
                    auricle contained in head 
A neruon whose cell body is within an autonomic ganglion.
Expand autonomic neuron relations
                    autonomic neuron is a peripheral nervous system neuron 
The long process of a neuron that conducts nerve impulses, usually away from the cell body to the terminals and varicosities, which are sites of storage and release of neurotransmitter.
Expand axon relations
                    axon is a cell projection 
                    axon is a continuant 
                    axon specific to neuron 
                    axon part of neurite 
The bundle of microtubules and associated proteins that forms the core of cilia (also called flagella) in eukaryotic cells and is responsible for their movements.
Expand axoneme relations
                    axoneme is a anatomical entity 
                    axoneme is a independent continuant 
                    axoneme is a intracellular non-membrane-bounded organelle 
                    axoneme part of cilium 
                    axoneme part of flagellum 
A group of axons linking two or more neuropils and having a common origin, termination
Expand axon tract relations
                    axon tract is a tissue 
A membrane-tethered, short cylindrical array of microtubules and associated proteins found at the base of a eukaryotic cilium (also called flagellum) that is similar in structure to a centriole and derives from it. The cilium basal body is the site of assembly and remodelling of the cilium and serves as a nucleation site for axoneme growth. As well as anchoring the cilium, it is thought to provide a selective gateway regulating the entry of ciliary proteins and vesicles by intraflagellar transport.
Expand basal body relations
                    basal body is a anatomical entity 
                    basal body is a independent continuant 
                    basal body is a intracellular non-membrane-bounded organelle 
                    basal body part of cilium 
                    basal body part of flagellum 
Acellular anatomical structure that consists of a thin sheet of fibrous proteins that underlie and support the cells of an epithelium. It separates the cells of an epithelium from any underlying tissue.
Expand basal lamina of epithelium relations
                    basal lamina of epithelium is a acellular anatomical structure 
                    basal lamina of epithelium is a independent continuant 
                    basal lamina of epithelium part of integumental system 
                    basal lamina of epithelium immediately deep to epidermis 
The basal surface of the epidermis in direct contact with the basal lamina.
Expand basal surface of the epidermis relations
                    basal surface of the epidermis is a anatomical entity 
                    basal surface of the epidermis is a independent continuant 
                    basal surface of the epidermis part of epidermis 
                    basal surface of the epidermis has component basal surface 
One of two distinct histochemical classes of gland cells, these are found near the ventral mesenchyme, the pharynx and in the dorsal region of the head. May also be called cyanophilic gland cells.
Expand basophilic gland cell relations
                    basophilic gland cell is a gland cell 
Expand biological entity relations
                    biological entity is a independent continuant 
Organisms sharing a specified genotype or karyotype.
A type of interneuron that has two neurites, usually an axon and a dendrite, extending from opposite poles of an ovoid cell body.
Expand bipolar neuron relations
                    bipolar neuron is a interneuron 
                    bipolar neuron part of subepidermal nerve plexus 
                    bipolar neuron part of submuscular nerve plexus 
                    bipolar neuron part of transverse commissure 
A regenerating tissue composed of a proliferative mass of undifferentiated progenitor cells from which new differentiated structures arise.
Expand blastema relations
                    blastema is a regenerating anatomical structure 
                    blastema part of regenerating fragment 
An undifferentiated, cycling embryonic cell in Stage 1-5 embryos that expresses piwi-1, numerous adult asexual neoblast enriched genes, and early embryo enriched genes. Blastomeres give rise to temporary embryonic tissues during Stage 2, continue dividing asynchronously in the embryonic wall, and ultimately give rise to neoblasts and adult lineage progenitors beginning in Stage 5.
Expand blastomere relations
                    blastomere is a anatomical entity 
                    blastomere is a embryonic cell 
                    blastomere is a material entity 
                    blastomere existence overlaps Stage 1 
                    blastomere existence overlaps Stage 2 
                    blastomere existence overlaps Stage 3 
                    blastomere existence overlaps Stage 4 
                    blastomere existence overlaps Stage 5 
                    blastomere part of ectolecithal embryo 
                    blastomere existence starts during or after Stage 1 
                    blastomere contained in aboral hemisphere 
                    blastomere contained in embryonic wall 
                    blastomere contained in oral hemisphere 
                    blastomere develops from zygote 
                    blastomere existence ends during or before Stage 5 
                    blastomere existence ends during or before Stage 5 
cell which is part of the body wall musculature
Any collection of muscles that is part of a body wall [Automatically generated definition].
Expand body wall musculature relations
                    body wall musculature is a material entity 
                    body wall musculature is a organ 
                    body wall musculature existence overlaps adult hermaphrodite 
                    body wall musculature existence overlaps asexual adult 
                    body wall musculature existence overlaps juvenile 
                    body wall musculature existence overlaps Stage 6 
                    body wall musculature existence overlaps Stage 7 
                    body wall musculature existence overlaps Stage 8 
                    body wall musculature part of musculature system 
                    body wall musculature contained in anterior region of the whole animal 
                    body wall musculature contained in copulatory region 
                    body wall musculature contained in dorsal region of the whole animal 
                    body wall musculature contained in head 
                    body wall musculature contained in parapharyngeal region 
                    body wall musculature contained in posterior region of the whole animal 
                    body wall musculature contained in prepharyngeal region 
                    body wall musculature contained in tail 
                    body wall musculature contained in ventral region of the whole animal 
Examples include the outer membranes of double membrane bound organelles such as mitochondria as well as the bounding membranes of single-membrane bound organelles such as lysosomes.
Expand bounding membrane of organelle relations
                    bounding membrane of organelle is a membrane 
any of the nerve fiber tracts that span the longitudinal fissure between the cerebral and/or cerebellar hemispheres of the brain
Expand brain commissure relations
                    brain commissure is a commissure 
                    brain commissure is a material entity 
                    brain commissure part of cephalic ganglia 
                    brain commissure contained in anterior region of the whole animal 
                    brain commissure contained in head 
                    brain commissure contained in ventral region of the whole animal 
Region of the cephalic ganglia innervated by the optic nerve (posterior-projecting photoreceptor neuron fasiculated axons).
Expand brain visual center relations
                    brain visual center is a material entity 
                    brain visual center is a tissue 
                    brain visual center existence overlaps adult hermaphrodite 
                    brain visual center existence overlaps asexual adult 
                    brain visual center existence overlaps juvenile 
                    brain visual center part of brain visual center 
                    brain visual center part of cephalic ganglia 
                    brain visual center part of visual system 
                    brain visual center contained in anterior region of the whole animal 
                    brain visual center contained in head 
                    brain visual center contained in ventral region of the whole animal 
An enlarged portion of the seminal vesicle, comprised of secretory epithelial cells, that connects to the ejaculatory duct within the penis papilla.
Expand bulbar cavity relations
                    bulbar cavity is a anatomical cavity 
                    bulbar cavity is a material entity 
                    bulbar cavity existence overlaps adult hermaphrodite 
                    bulbar cavity existence overlaps juvenile 
                    bulbar cavity specific to Smed sexual biotype 
                    bulbar cavity part of seminal vesicle 
                    bulbar cavity contained in copulatory region 
                    bulbar cavity contained in posterior region of the whole animal 
The passageway connecting the genital atrium to the copulatory bursa. Part of the copulatory apparatus. During mating, sperm from a partner is deposited into the bursal canal, where it collects in the copulatory bursa before travelling up the oviducts to the tuba.
Expand bursal canal relations
                    bursal canal is a material entity 
                    bursal canal is a tissue 
                    bursal canal existence overlaps adult hermaphrodite 
                    bursal canal existence overlaps juvenile 
                    bursal canal specific to Smed sexual biotype 
                    bursal canal part of copulatory apparatus 
                    bursal canal existence starts during or after juvenile 
                    bursal canal contained in copulatory region 
                    bursal canal contained in posterior region of the whole animal 
                    bursal canal contained in ventral region of the whole animal 
Irradiation-sensitive, mesenchymal cells that are absent from the head region anterior to the eyes and the pharynx. The Category 1 designation encompasses the neoblast population.
Expand Category 1 cell relations
                    Category 1 cell is a material entity 
                    Category 1 cell is a parenchymal cell 
                    Category 1 cell is a somatic cell 
                    Category 1 cell existence overlaps adult hermaphrodite 
                    Category 1 cell existence overlaps asexual adult 
                    Category 1 cell existence overlaps juvenile 
                    Category 1 cell contained in anterior region of the whole animal 
                    Category 1 cell contained in copulatory region 
                    Category 1 cell contained in dorsal region of the whole animal 
                    Category 1 cell contained in head 
                    Category 1 cell contained in parapharyngeal region 
                    Category 1 cell contained in posterior region of the whole animal 
                    Category 1 cell contained in prepharyngeal region 
                    Category 1 cell contained in tail 
                    Category 1 cell contained in ventral region of the whole animal 
Post-mitotic, mesenchymally located epidermal progenitors downstream of the zeta neoblasts.
Expand Category 2 cell relations
                    Category 2 cell is a epidermal progenitor cell 
                    Category 2 cell is a material entity 
                    Category 2 cell is a somatic cell 
                    Category 2 cell existence overlaps adult hermaphrodite 
                    Category 2 cell existence overlaps asexual adult 
                    Category 2 cell existence overlaps juvenile 
                    Category 2 cell existence overlaps Stage 5 
                    Category 2 cell existence overlaps Stage 6 
                    Category 2 cell existence overlaps Stage 7 
                    Category 2 cell existence overlaps Stage 8 
                    Category 2 cell part of integumental system 
                    Category 2 cell existence starts during or after Stage 5 
                    Category 2 cell contained in anterior region of the whole animal 
                    Category 2 cell contained in copulatory region 
                    Category 2 cell contained in dorsal region of the whole animal 
                    Category 2 cell contained in head 
                    Category 2 cell contained in parapharyngeal region 
                    Category 2 cell contained in posterior region of the whole animal 
                    Category 2 cell contained in prepharyngeal region 
                    Category 2 cell contained in tail 
                    Category 2 cell contained in ventral region of the whole animal 
                    Category 2 cell develops from zeta neoblast 
Post-mitotic, mesenchymally located epidermal progenitors downstream of the Category 2 cells.
Expand Category 3 cell relations
                    Category 3 cell is a epidermal progenitor cell 
                    Category 3 cell is a material entity 
                    Category 3 cell is a somatic cell 
                    Category 3 cell existence overlaps adult hermaphrodite 
                    Category 3 cell existence overlaps asexual adult 
                    Category 3 cell existence overlaps juvenile 
                    Category 3 cell existence overlaps Stage 5 
                    Category 3 cell existence overlaps Stage 6 
                    Category 3 cell existence overlaps Stage 7 
                    Category 3 cell existence overlaps Stage 8 
                    Category 3 cell part of integumental system 
                    Category 3 cell existence starts during or after Stage 5 
                    Category 3 cell contained in anterior region of the whole animal 
                    Category 3 cell contained in copulatory region 
                    Category 3 cell contained in dorsal region of the whole animal 
                    Category 3 cell contained in head 
                    Category 3 cell contained in parapharyngeal region 
                    Category 3 cell contained in posterior region of the whole animal 
                    Category 3 cell contained in prepharyngeal region 
                    Category 3 cell contained in tail 
                    Category 3 cell contained in ventral region of the whole animal 
                    Category 3 cell develops from Category 2 cell 
Post-mitotic, mesenchymally and epidermally located progenitors downstream of the Category 3 cells.
Expand Category 4 cell relations
                    Category 4 cell is a epidermal cell 
                    Category 4 cell is a epidermal progenitor cell 
                    Category 4 cell is a material entity 
                    Category 4 cell is a non ciliated epithelial cell 
                    Category 4 cell existence overlaps adult hermaphrodite 
                    Category 4 cell existence overlaps asexual adult 
                    Category 4 cell existence overlaps juvenile 
                    Category 4 cell existence overlaps Stage 5 
                    Category 4 cell existence overlaps Stage 6 
                    Category 4 cell existence overlaps Stage 7 
                    Category 4 cell existence overlaps Stage 8 
                    Category 4 cell part of dorsal region of the epidermis 
                    Category 4 cell part of non-ciliated epidermis 
                    Category 4 cell part of ventral epidermis 
                    Category 4 cell existence starts during or after Stage 5 
                    Category 4 cell contained in anterior region of the whole animal 
                    Category 4 cell contained in copulatory region 
                    Category 4 cell contained in dorsal region of the whole animal 
                    Category 4 cell contained in head 
                    Category 4 cell contained in parapharyngeal region 
                    Category 4 cell contained in posterior region of the whole animal 
                    Category 4 cell contained in prepharyngeal region 
                    Category 4 cell contained in tail 
                    Category 4 cell contained in ventral region of the whole animal 
                    Category 4 cell develops from Category 3 cell 
Post-mitotic, ciliated epidermal cells.
Expand Category 5 cell relations
                    Category 5 cell is a anatomical entity 
                    Category 5 cell is a ciliated epithelial cell 
                    Category 5 cell is a epidermal cell 
                    Category 5 cell is a material entity 
                    Category 5 cell existence overlaps adult hermaphrodite 
                    Category 5 cell existence overlaps asexual adult 
                    Category 5 cell existence overlaps juvenile 
                    Category 5 cell existence overlaps Stage 6 
                    Category 5 cell existence overlaps Stage 7 
                    Category 5 cell existence overlaps Stage 8 
                    Category 5 cell part of dorsal region of the epidermis 
                    Category 5 cell part of ventral epidermis 
                    Category 5 cell existence starts during or after Stage 6 
                    Category 5 cell contained in anterior region of the whole animal 
                    Category 5 cell contained in copulatory region 
                    Category 5 cell contained in dorsal region of the whole animal 
                    Category 5 cell contained in head 
                    Category 5 cell contained in parapharyngeal region 
                    Category 5 cell contained in posterior region of the whole animal 
                    Category 5 cell contained in prepharyngeal region 
                    Category 5 cell contained in tail 
                    Category 5 cell contained in ventral region of the whole animal 
                    Category 5 cell develops from Category 4 cell 
A material entity of anatomical origin (part of or deriving from an organism) that has as its parts a maximally connected cell compartment surrounded by a plasma membrane.
Expand cell relations
                    cell is a anatomical structure 
The portion of a cell bearing surface projections such as axons, dendrites, cilia, or flagella that includes the nucleus, but excludes all cell projections.
Expand cell body relations
                    cell body is a cellular_component 
The attachment of one cell to another cell via adhesion molecules.
Expand cell-cell adhesion relations
                    cell-cell adhesion is a cell-cell contact zone 
Extended zone of intimate apposition between two cells containing one or more types of intercellular junctions.
Expand cell-cell contact zone relations
                    cell-cell contact zone is a cellular_component 
A cell junction that forms a connection between two or more cells in a multicellular organism; excludes direct cytoplasmic junctions such as ring canals.
Expand cell-cell junction relations
                    cell-cell junction is a cell junction 
A cellular component that forms a specialized region of connection between two or more cells or between a cell and the extracellular matrix. At a cell junction, anchoring proteins extend through the plasma membrane to link cytoskeletal proteins in one cell to cytoskeletal proteins in neighboring cells or to proteins in the extracellular matrix.
Expand cell junction relations
                    cell junction is a cell-cell contact zone 
Expand cell part relations
                    cell part is a anatomical structure 
A prolongation or process extending from a cell.
Expand cell projection relations
                    cell projection is a cellular_component 
Glands surrounding the genital atrium that are required for production of the proteinaceous egg capsule shell and stalk.
Expand cement gland relations
                    cement gland is a material entity 
                    cement gland is a tissue 
                    cement gland existence overlaps adult hermaphrodite 
                    cement gland existence overlaps juvenile 
                    cement gland specific to Smed sexual biotype 
                    cement gland part of copulatory apparatus 
                    cement gland existence starts during or after juvenile 
                    cement gland contained in copulatory region 
                    cement gland contained in dorsal region of the whole animal 
                    cement gland contained in posterior region of the whole animal 
                    cement gland contained in ventral region of the whole animal 
An information content entity that consists of a CRID symbol and additional information about the CRID registry to which it belongs.
Expand centrally registered identifier relations
                    centrally registered identifier is a information content entity 
                    centrally registered identifier has part centrally registered identifier symbol 
A CRID registry is a dataset of CRID records, each consisting of a CRID symbol and additional information which was recorded in the dataset through a assigning a centrally registered identifier process.
Expand centrally registered identifier registry relations
                    centrally registered identifier registry is a data set 
A symbol that is part of a CRID and that is sufficient to look up a record from the CRID's registry.
Expand centrally registered identifier symbol relations
                    centrally registered identifier symbol is a symbol 
                    centrally registered identifier symbol part of centrally registered identifier 
The central nervous system is the core nervous system that serves an integrating and coordinating function. In vertebrates it consists of the neural tube derivatives: the brain and spinal cord. In invertebrates it includes central ganglia plus nerve cord.
Expand central nervous system relations
                    central nervous system is a nervous system 
                    central nervous system part of asexual organism 
Any neuron that is part of a central nervous system.
Expand central nervous system neuron relations
                    central nervous system neuron is a neuron 
                    central nervous system neuron part of central nervous system 
The planarian brain, consisting of two bilaterally symmetric lobes occupying a ventral position in the head.
Expand cephalic ganglia relations
                    cephalic ganglia is a material entity 
                    cephalic ganglia is a organ 
                    cephalic ganglia existence overlaps adult hermaphrodite 
                    cephalic ganglia existence overlaps asexual adult 
                    cephalic ganglia existence overlaps juvenile 
                    cephalic ganglia existence overlaps Stage 6 
                    cephalic ganglia existence overlaps Stage 7 
                    cephalic ganglia existence overlaps Stage 8 
                    cephalic ganglia part of central nervous system 
                    cephalic ganglia existence starts during or after Stage 6 
                    cephalic ganglia contained in anterior region of the whole animal 
                    cephalic ganglia contained in dorsal region of the whole animal 
                    cephalic ganglia contained in head 
                    cephalic ganglia contained in ventral region of the whole animal 
One of two bilaterally symmetric structures comprising the planarian brain.
Expand cephalic ganglia lobe relations
                    cephalic ganglia lobe is a material entity 
                    cephalic ganglia lobe is a tissue 
                    cephalic ganglia lobe existence overlaps adult hermaphrodite 
                    cephalic ganglia lobe existence overlaps asexual adult 
                    cephalic ganglia lobe existence overlaps juvenile 
                    cephalic ganglia lobe existence overlaps Stage 6 
                    cephalic ganglia lobe existence overlaps Stage 7 
                    cephalic ganglia lobe existence overlaps Stage 8 
                    cephalic ganglia lobe part of cephalic ganglia 
                    cephalic ganglia lobe existence starts during or after Stage 6 
                    cephalic ganglia lobe contained in anterior region of the whole animal 
                    cephalic ganglia lobe contained in dorsal region of the whole animal 
                    cephalic ganglia lobe contained in head 
                    cephalic ganglia lobe contained in ventral region of the whole animal 
A central nervous system neuron located within the planarian brain.
Expand cephalic ganglia neuron relations
                    cephalic ganglia neuron is a central nervous system neuron 
                    cephalic ganglia neuron is a material entity 
                    cephalic ganglia neuron part of cephalic ganglia 
                    cephalic ganglia neuron contained in anterior region of the whole animal 
                    cephalic ganglia neuron contained in head 
                    cephalic ganglia neuron contained in ventral region of the whole animal 
This primordium develops into cephalic ganglia
Expand cephalic ganglia primordium relations
                    cephalic ganglia primordium is a anatomical entity 
                    cephalic ganglia primordium is a primordium 
                    cephalic ganglia primordium develops into cephalic ganglia 
A progenitor cell that gives rise to one or more of the cell type(s) in the nervous system.
Expand cephalic ganglia progenitor cell relations
                    cephalic ganglia progenitor cell is a anatomical entity 
                    cephalic ganglia progenitor cell is a progenitor cell 
                    cephalic ganglia progenitor cell develops into cephalic ganglia 
Amputation carried out by application of chemicals.
Expand chemical amputation relations
                    chemical amputation is a wound 
Amputation of the phaynx, including the esophagus, by treatment with Sodium Azide.
Expand chemical pharynx amputation relations
                    chemical pharynx amputation is a chemical amputation 
An intentional wound produced by non-autonomous chemical means.
Expand chemical wound relations
                    chemical wound is a wound 
Any neuron that capable of some detection of chemical stimulus involved in sensory perception.
Expand chemosensory neuron relations
                    chemosensory neuron is a sensory neuron 
                    chemosensory neuron part of sensory system 
Neurons that express choline acetyltransferase.
Expand cholinergic neuron relations
                    cholinergic neuron is a independent continuant 
                    cholinergic neuron is a neurosecretory neuron 
                    cholinergic neuron existence overlaps adult hermaphrodite 
                    cholinergic neuron existence overlaps asexual adult 
                    cholinergic neuron existence overlaps juvenile 
The ordered and organized complex of DNA, protein (histones), and sometimes RNA, that forms the chromosome.
Expand chromatin relations
                    chromatin is a nuclear part 
A membrane-less, cytoplasmic ribonucleoprotein granule present in neoblasts and germ cells implicated in post-transcriptional regulation. The RNA helicase DHH1/RCK, Tudor, SmB, methylated substrates of PRMT5, PIWI-3 and Germinal Histone H4 localize to chromatoid bodies in neoblasts.
Expand chromatoid body relations
                    chromatoid body is a non-membrane-bounded organelle 
structural element of a chromosome, for example, a telomere and a centromere
Expand chromosomal_structural_element relations
                    chromosomal_structural_element is a chromosome part 
A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
Expand chromosome relations
                    chromosome is a non-membrane-bounded organelle 
                    chromosome is a nuclear part 
Under the microscope chromosomes appear as thin, thread-like structures. They all have a short arm and long arm separated by a primary constriction called the centromere. The short arm is designated as p and the long arm as q.
Expand chromosome arm relations
                    chromosome arm is a chromosome part 
                    chromosome arm is a nuclear part 
                    chromosome arm part of chromosome 
This is a manufactured term, that serves the purpose of allow the parts of a chromosome to have an is_a path to the root.
Expand chromosome part relations
                    chromosome part is a nuclear part 
                    chromosome part part of chromosome 
An epithelial cell that has cilia.
Expand ciliated epithelial cell relations
                    ciliated epithelial cell is a epithelial cell 
Epithelium bearing vibratile cilia on the free surface.
Expand ciliated epithelium relations
                    ciliated epithelium is a epithelium 
A specialized eukaryotic organelle that consists of a filiform extrusion of the cell surface and of some cytoplasmic parts. Each cilium is largely bounded by an extrusion of the cytoplasmic (plasma) membrane, and contains a regular longitudinal array of microtubules, anchored to a basal body. The longitudinal array of microtubules are almost always in a 9+2 array with 2 microtubles in the central cilia bundle and 9 sets of doublet microtubules around the perimeter. The exception to this arrangement is spermatazoa flagella, which have a 9+1 array in planarians.
Expand cilium relations
                    cilium is a cell projection 
                    cilium is a continuant 
                    cilium part of ciliated epithelial cell 
A subset of sensory neurons located along the dorsal head margin.
Expand cintillo+ sensory neuron relations
                    cintillo+ sensory neuron is a material entity 
                    cintillo+ sensory neuron is a sensory neuron 
                    cintillo+ sensory neuron existence overlaps adult hermaphrodite 
                    cintillo+ sensory neuron existence overlaps asexual adult 
                    cintillo+ sensory neuron existence overlaps juvenile 
                    cintillo+ sensory neuron contained in anterior region of the whole animal 
                    cintillo+ sensory neuron contained in dorsal region of the whole animal 
                    cintillo+ sensory neuron contained in head 
Body wall muscle fibers arrayed around the dorsoventral axis. Upon regeneration, these are thought to be produced de novo in the blastema.
Expand circular muscle cell relations
                    circular muscle cell is a anatomical entity 
                    circular muscle cell is a material entity 
                    circular muscle cell is a muscle cell 
                    circular muscle cell existence overlaps adult hermaphrodite 
                    circular muscle cell existence overlaps asexual adult 
                    circular muscle cell existence overlaps juvenile 
                    circular muscle cell part of body wall musculature 
                    circular muscle cell contained in anterior region of the whole animal 
                    circular muscle cell contained in copulatory region 
                    circular muscle cell contained in dorsal region of the whole animal 
                    circular muscle cell contained in head 
                    circular muscle cell contained in parapharyngeal region 
                    circular muscle cell contained in posterior region of the whole animal 
                    circular muscle cell contained in prepharyngeal region 
                    circular muscle cell contained in tail 
                    circular muscle cell contained in ventral region of the whole animal 
                    circular muscle cell develops from circular muscle progenitor cell 
piwi-1+, nkx1-1+ progenitor neoblasts required for specification of circular muscle fibers.
Expand circular muscle progenitor cell relations
                    circular muscle progenitor cell is a muscle progenitor cell 
                    circular muscle progenitor cell is a neoblast 
                    circular muscle progenitor cell is a somatic cell 
Pluripotent piwi-1+ stem cells that self-renew, form expanding colonies and produce differentiating daughters that contribute to multiple organ systems. cNeoblasts are predicted to be broadly distributed across the anteroposterior axis of the adult worm.
Expand clonogenic neoblast relations
                    clonogenic neoblast is a neoblast 
                    clonogenic neoblast is a somatic cell 
                    clonogenic neoblast existence starts during or after Stage 6 
Non-ciliated tubules associated with the distal tubules, which cross the basement membrane and terminate in the dorsal epidermis.
Expand collecting duct relations
                    collecting duct is a material entity 
                    collecting duct is a tissue 
                    collecting duct existence overlaps adult hermaphrodite 
                    collecting duct existence overlaps asexual adult 
                    collecting duct existence overlaps juvenile 
                    collecting duct adjacent to distal tubule 
                    collecting duct part of renal system 
                    collecting duct contained in anterior region of the whole animal 
                    collecting duct contained in copulatory region 
                    collecting duct contained in dorsal region of the whole animal 
                    collecting duct contained in head 
                    collecting duct contained in parapharyngeal region 
                    collecting duct contained in posterior region of the whole animal 
                    collecting duct contained in prepharyngeal region 
                    collecting duct contained in tail 
Nonciliated epithelial cells that assemble into collecting ducts.
Expand collecting duct epithelial cell relations
                    collecting duct epithelial cell is a material entity 
                    collecting duct epithelial cell is a non ciliated epithelial cell 
                    collecting duct epithelial cell existence overlaps adult hermaphrodite 
                    collecting duct epithelial cell existence overlaps asexual adult 
                    collecting duct epithelial cell existence overlaps juvenile 
                    collecting duct epithelial cell part of collecting duct 
                    collecting duct epithelial cell contained in anterior region of the whole animal 
                    collecting duct epithelial cell contained in copulatory region 
                    collecting duct epithelial cell contained in dorsal region of the whole animal 
                    collecting duct epithelial cell contained in head 
                    collecting duct epithelial cell contained in parapharyngeal region 
                    collecting duct epithelial cell contained in posterior region of the whole animal 
                    collecting duct epithelial cell contained in prepharyngeal region 
                    collecting duct epithelial cell contained in tail 
A neuron that has an axon which crosses the midline.
Expand commissural neuron relations
                    commissural neuron is a neuron 
                    commissural neuron part of central nervous system 
                    commissural neuron part of peripheral nervous system 
A bundle of nerve fibers crossing from one side to the other side of the brain or spinal cord.
Expand commissure relations
                    commissure is a tissue 
                    commissure part of central nervous system 
An entity that exists in full at any time in which it exists at all, persists through time while maintaining its identity and has no temporal parts.
Expand continuant relations
                    continuant is a entity 
                    continuant part of continuant 
Accessory reproductive structures involved in copulation, egg capsule development and laying.
Expand copulatory apparatus relations
                    copulatory apparatus is a material entity 
                    copulatory apparatus is a reproductive structure 
                    copulatory apparatus part of reproductive system 
                    copulatory apparatus contained in copulatory region 
                    copulatory apparatus contained in dorsal region of the whole animal 
                    copulatory apparatus contained in posterior region of the whole animal 
                    copulatory apparatus contained in ventral region of the whole animal 
An organ that receives and stores sperm from mating partners.
Expand copulatory bursa relations
                    copulatory bursa is a material entity 
                    copulatory bursa is a reproductive organ 
                    copulatory bursa part of copulatory apparatus 
                    copulatory bursa contained in copulatory region 
                    copulatory bursa contained in posterior region of the whole animal 
Portion of the sexual biotype body plan immediately posterior to the parapharyngeal region, and immediately anterior to the tail. Encompasses the copulatory apparatus.
Expand copulatory region relations
                    copulatory region is a anatomical region 
                    copulatory region is a independent continuant 
                    copulatory region is a material entity 
                    copulatory region existence overlaps adult hermaphrodite 
                    copulatory region existence overlaps juvenile 
                    copulatory region specific to Smed sexual biotype 
                    copulatory region posterior to parapharyngeal region 
                    copulatory region existence starts during or after juvenile 
                    copulatory region contained in posterior region of the whole animal 
The curation status of the term. The allowed values come from an enumerated list of predefined terms. See the specification of these instances for more detailed definitions of each enumerated value.
Expand curation status specification relations
                    curation status specification is a data about an ontology part 
A wound or cleft resulted from tissue separation into parts or laid open or penetrated with a sharp edge or instrument.
Expand cut relations
                    cut is a surgical wound 
All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures
Expand cytoplasm relations
                    cytoplasm is a intracellular part 
Any constituent part of the cytoplasm, all of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
Expand cytoplasmic part relations
                    cytoplasmic part is a intracellular part 
                    cytoplasmic part part of cytoplasm 
Any constituent part of cytoplasmic vesicle, a vesicle formed of membrane or protein, found in the cytoplasm of a cell.
Expand cytoplasmic vesicle part relations
                    cytoplasmic vesicle part is a cytoplasmic part 
data about an ontology part is a data item about a part of an ontology, for example a term
Expand data about an ontology part relations
                    data about an ontology part is a data item 
a data item is an information content entity that is intended to be a truthful statement about something (modulo, e.g., measurement precision or other systematic errors) and is constructed/acquired by a method which reliably tends to produce (approximately) truthful statements.
Expand data item relations
                    data item is a information content entity 
A data item that is an aggregate of other data items of the same type that have something in common. Averages and distributions can be determined for data sets.
Expand data set relations
                    data set is a data item 
Anatomical structure which is a subdivision of a whole adult or juvenile organism, consisting of components of multiple anatomical systems.
Expand definitive organism subdivision relations
                    definitive organism subdivision is a organism subdivision 
A neuron projection that has a short, tapering, morphology. Dendrites receive and integrate signals from other neurons or from sensory stimuli, and conduct nerve impulses towards the axon or the cell body. In most neurons, the impulse is conveyed from dendrites to axon via the cell body, but in some types of unipolar neuron, the impulse does not travel via the cell body.
Expand dendrite relations
                    dendrite is a cell projection 
                    dendrite is a continuant 
                    dendrite specific to neuron 
                    dendrite part of neurite 
A denotator type indicates how a term should be interpreted from an ontological perspective.
Expand denotator type relations
                    denotator type is a data about an ontology part 
inverse of the relation 'denotes'
denotes is a primitive, instance-level, relation obtaining between an information content entity and some portion of reality. Denotation is what happens when someone creates an information content entity E in order to specifically refer to something. The only relation between E and the thing is that E can be used to 'pick out' the thing. This relation connects those two together. Freedictionary.com sense 3: To signify directly; refer to specifically
Expand denotes relations
                    denotes is a is about 
Cells isolated from dissociated planarian tissue.
Expand derived cell population relations
                    derived cell population is a material anatomical entity 
Body wall muscle fibers arrayed diagonally along the anteroposterior axis.
Expand diagonal muscle cell relations
                    diagonal muscle cell is a material entity 
                    diagonal muscle cell is a muscle cell 
                    diagonal muscle cell existence overlaps adult hermaphrodite 
                    diagonal muscle cell existence overlaps asexual adult 
                    diagonal muscle cell existence overlaps juvenile 
                    diagonal muscle cell part of body wall musculature 
                    diagonal muscle cell contained in anterior region of the whole animal 
                    diagonal muscle cell contained in copulatory region 
                    diagonal muscle cell contained in dorsal region of the whole animal 
                    diagonal muscle cell contained in head 
                    diagonal muscle cell contained in parapharyngeal region 
                    diagonal muscle cell contained in posterior region of the whole animal 
                    diagonal muscle cell contained in prepharyngeal region 
                    diagonal muscle cell contained in tail 
                    diagonal muscle cell contained in ventral region of the whole animal 
spermatocyte undergoing diakinesis
Expand diakinesis stage spermatocyte relations
                    diakinesis stage spermatocyte is a spermatocyte 
                    diakinesis stage spermatocyte contains process diakinesis 
Anatomical system that has as its parts the organs devoted to the ingestion, digestion, and assimilation of food and the discharge of residual wastes.
Expand digestive system relations
                    digestive system is a anatomical system 
                    digestive system part of asexual organism 
                    digestive system part of sexual organism 
An anatomical space that is surrounded by a digestive tract.
Expand digestive tract lumen relations
                    digestive tract lumen is a anatomical entity 
                    digestive tract lumen is a lumen 
                    digestive tract lumen is a material entity 
                    digestive tract lumen existence overlaps adult hermaphrodite 
                    digestive tract lumen existence overlaps asexual adult 
                    digestive tract lumen existence overlaps juvenile 
                    digestive tract lumen existence overlaps Stage 7 
                    digestive tract lumen existence overlaps Stage 8 
                    digestive tract lumen part of gut 
                    digestive tract lumen existence starts during or after Stage 7 
                    digestive tract lumen contained in anterior region of the whole animal 
                    digestive tract lumen contained in copulatory region 
                    digestive tract lumen contained in dorsal region of the whole animal 
                    digestive tract lumen contained in parapharyngeal region 
                    digestive tract lumen contained in posterior region of the whole animal 
                    digestive tract lumen contained in prepharyngeal region 
                    digestive tract lumen contained in tail 
                    digestive tract lumen contained in ventral region of the whole animal 
spermatocyte undergoing diplotene
Expand diplotene stage spermatocyte relations
                    diplotene stage spermatocyte is a spermatocyte 
                    diplotene stage spermatocyte contains process diplotene 
Sinusoidal, non-ciliated tubules connected to proximal tubules within the parenchyma. Tubules are formed via intercellular junctions between two epithelial cells.
Expand distal tubule relations
                    distal tubule is a anatomical entity 
                    distal tubule is a material entity 
                    distal tubule is a tissue 
                    distal tubule existence overlaps adult hermaphrodite 
                    distal tubule existence overlaps asexual adult 
                    distal tubule existence overlaps juvenile 
                    distal tubule adjacent to collecting duct 
                    distal tubule part of protonephridia 
                    distal tubule contained in anterior region of the whole animal 
                    distal tubule contained in copulatory region 
                    distal tubule contained in dorsal region of the whole animal 
                    distal tubule contained in head 
                    distal tubule contained in parapharyngeal region 
                    distal tubule contained in posterior region of the whole animal 
                    distal tubule contained in prepharyngeal region 
                    distal tubule contained in tail 
                    distal tubule develops from protonephridial progenitor cell 
Nonciliated epithelial cells that assemble into protonephridial distal tubules.
Expand distal tubule epithelial cell relations
                    distal tubule epithelial cell is a anatomical entity 
                    distal tubule epithelial cell is a material entity 
                    distal tubule epithelial cell is a non ciliated epithelial cell 
                    distal tubule epithelial cell existence overlaps adult hermaphrodite 
                    distal tubule epithelial cell existence overlaps asexual adult 
                    distal tubule epithelial cell existence overlaps juvenile 
                    distal tubule epithelial cell part of distal tubule 
                    distal tubule epithelial cell contained in anterior region of the whole animal 
                    distal tubule epithelial cell contained in copulatory region 
                    distal tubule epithelial cell contained in dorsal region of the whole animal 
                    distal tubule epithelial cell contained in head 
                    distal tubule epithelial cell contained in parapharyngeal region 
                    distal tubule epithelial cell contained in posterior region of the whole animal 
                    distal tubule epithelial cell contained in prepharyngeal region 
                    distal tubule epithelial cell contained in tail 
A neuron that expresses the neurotransmitter dopamine.
Expand dopaminergic neuron relations
                    dopaminergic neuron is a independent continuant 
                    dopaminergic neuron is a neurosecretory neuron 
                    dopaminergic neuron existence overlaps adult hermaphrodite 
                    dopaminergic neuron existence overlaps asexual adult 
                    dopaminergic neuron existence overlaps juvenile 
cell which is part of the dorsal region of the epidermis
Expand dorsal epidermis cell relations
                    dorsal epidermis cell is a anatomical entity 
                    dorsal epidermis cell is a independent continuant 
A progenitor cell that gives rise to one or more of the cell type(s) in the dorsal epidermis.
Expand dorsal epidermis progenitor cell relations
                    dorsal epidermis progenitor cell is a anatomical entity 
                    dorsal epidermis progenitor cell is a progenitor cell 
                    dorsal epidermis progenitor cell develops into dorsal region of the epidermis 
The median line/plane of bilateral symmetry along the anteroposterior axis on the dorsal surface of the animal.
Expand dorsal midline relations
                    dorsal midline is a ventral midline 
                    dorsal midline part of midline 
                    dorsal midline has component dorsal region 
The dorsal region of a fragment encompassing all or part of the anterior region of the animal.
Expand dorsal region of anterior fragment relations
                    dorsal region of anterior fragment is a ventral region of anterior fragment 
                    dorsal region of anterior fragment part of anterior fragment 
                    dorsal region of anterior fragment has component dorsal region 
                    dorsal region of anterior fragment has component dorsal region of the whole animal 
The dorsal region of a fragment derived from a prepharyngeal amputation encompassing the head.
Expand dorsal region of head fragment relations
                    dorsal region of head fragment is a ventral region of head fragment 
                    dorsal region of head fragment part of head fragment 
                    dorsal region of head fragment has component dorsal region 
                    dorsal region of head fragment has component dorsal region of the whole animal 
The dorsal region of a fragment derived from an amputation parallel to or along any edge, which overlaps the lateral region, dorso-lateral region, ventro-lateral region, antero-lateral margin, lateral margin, ventro-lateral margin, postero-lateral margin, dorso-lateral margin, antero-lateral region, postero-lateral region.
Expand dorsal region of lateral fragment relations
                    dorsal region of lateral fragment is a ventral region of lateral fragment 
                    dorsal region of lateral fragment part of lateral fragment 
                    dorsal region of lateral fragment has component dorsal region 
                    dorsal region of lateral fragment has component dorsal region of the whole animal 
The dorsal region of a fragment derived from an amputation parallel to the midline.
Expand dorsal region of longitudinal fragment relations
                    dorsal region of longitudinal fragment is a ventral region of longitudinal fragment 
                    dorsal region of longitudinal fragment part of longitudinal fragment 
                    dorsal region of longitudinal fragment has component dorsal region 
                    dorsal region of longitudinal fragment has component dorsal region of the whole animal 
The dorsal region of a 3D piece of tissue, usually though the whole depth of the animal encompassing both dorsal and ventral sides, often made with a biopsy punch.
Expand dorsal region of plug fragment relations
                    dorsal region of plug fragment is a ventral region of plug fragment 
                    dorsal region of plug fragment part of plug fragment 
                    dorsal region of plug fragment part of wedge fragment 
                    dorsal region of plug fragment has component dorsal region 
                    dorsal region of plug fragment has component dorsal region of the whole animal 
The dorsal region of a fragment encompassing all or part of the posterior region of the animal.
Expand dorsal region of posterior fragment relations
                    dorsal region of posterior fragment is a ventral region of posterior fragment 
                    dorsal region of posterior fragment part of posterior fragment 
                    dorsal region of posterior fragment has component dorsal region 
                    dorsal region of posterior fragment has component dorsal region of the whole animal 
The dorsal region of a fragment derived from two postpharyngeal amputations, removing the anterior region and the tail tip.
Expand dorsal region of postpharyngeal fragment relations
                    dorsal region of postpharyngeal fragment is a ventral region of postpharyngeal fragment 
                    dorsal region of postpharyngeal fragment part of postpharyngeal fragment 
                    dorsal region of postpharyngeal fragment has component dorsal region 
                    dorsal region of postpharyngeal fragment has component dorsal region of the whole animal 
The dorsal region of a fragment derived from two prepharyngeal amputations, removing the head and posterior regions of the animal.
Expand dorsal region of prepharyngeal fragment relations
                    dorsal region of prepharyngeal fragment is a ventral region of prepharyngeal fragment 
                    dorsal region of prepharyngeal fragment part of prepharyngeal fragment 
                    dorsal region of prepharyngeal fragment has component dorsal region 
                    dorsal region of prepharyngeal fragment has component dorsal region of the whole animal 
The dorsal region of the tail.
Expand dorsal region of tail relations
                    dorsal region of tail part of tail 
                    dorsal region of tail has component dorsal region 
The dorsal region of a fragment derived from a postpharyngeal amputation encompassing the tail.
Expand dorsal region of tail fragment relations
                    dorsal region of tail fragment is a ventral region of tail fragment 
                    dorsal region of tail fragment part of tail fragment 
                    dorsal region of tail fragment has component dorsal region 
                    dorsal region of tail fragment has component dorsal region of the whole animal 
Single cell layer of dorsal, post-mitotic, epithelial cells containing the dorsal stripe.
Expand dorsal region of the epidermis relations
                    dorsal region of the epidermis is a dorsal region of the whole animal 
                    dorsal region of the epidermis is a independent continuant 
                    dorsal region of the epidermis is a ventral epidermis 
                    dorsal region of the epidermis part of epidermis 
                    dorsal region of the epidermis has component dorsal region 
Three dimensional compartment along the dorsoventral axis that is above the anteroposterior axis, containing the eyes.
Expand dorsal region of the whole animal relations
                    dorsal region of the whole animal is a ventral region of the whole animal 
                    dorsal region of the whole animal part of whole organism 
                    dorsal region of the whole animal has component dorsal region 
The dorsal region of a fragment derived from pre- and post-pharyngeal amputations, encompassing the pharynx and parapharyngeal region.
Expand dorsal region of trunk fragment relations
                    dorsal region of trunk fragment is a ventral region of trunk fragment 
                    dorsal region of trunk fragment part of trunk fragment 
                    dorsal region of trunk fragment has component dorsal region 
                    dorsal region of trunk fragment has component dorsal region of the whole animal 
Ciliated epithelial cells along the dorsal midline.
Expand dorsal stripe relations
                    dorsal stripe is a anatomical entity 
                    dorsal stripe is a ciliated epithelium 
                    dorsal stripe is a material entity 
                    dorsal stripe existence overlaps adult hermaphrodite 
                    dorsal stripe existence overlaps asexual adult 
                    dorsal stripe existence overlaps juvenile 
                    dorsal stripe part of dorsal region of the epidermis 
                    dorsal stripe contained in anterior region of the whole animal 
                    dorsal stripe contained in copulatory region 
                    dorsal stripe contained in dorsal region of the whole animal 
                    dorsal stripe contained in head 
                    dorsal stripe contained in parapharyngeal region 
                    dorsal stripe contained in posterior region of the whole animal 
                    dorsal stripe contained in prepharyngeal region 
                    dorsal stripe contained in tail 
Axis that runs along the short axis of the animal, perpendicular to the anteroposterior axis, running from the dorsal (back) side of the animal to the ventral (belly) side of the animal. This axis splits anterior and posterior regions of the animal to either side.
Expand dorsal-ventral axis of the whole animal relations
                    dorsal-ventral axis of the whole animal is a continuant 
                    dorsal-ventral axis of the whole animal part of whole organism 
                    dorsal-ventral axis of the whole animal has component dorsal-ventral axis 
Region along the edge of the animal where the dorsal and ventral surfaces meet.
Expand dorsal ventral margin of the whole animal relations
                    dorsal ventral margin of the whole animal is a continuant 
                    dorsal ventral margin of the whole animal part of whole organism 
                    dorsal ventral margin of the whole animal has component dorsal/ventral compartment boundary 
A muscle cell that runs in the transverse plane that connects the dorsal and ventral sides of the animal.
Expand dorsal-ventral muscle cell relations
                    dorsal-ventral muscle cell is a material entity 
                    dorsal-ventral muscle cell is a muscle cell 
                    dorsal-ventral muscle cell existence overlaps adult hermaphrodite 
                    dorsal-ventral muscle cell existence overlaps asexual adult 
                    dorsal-ventral muscle cell existence overlaps juvenile 
                    dorsal-ventral muscle cell part of parenchymal musculature 
                    dorsal-ventral muscle cell contained in anterior region of the whole animal 
                    dorsal-ventral muscle cell contained in copulatory region 
                    dorsal-ventral muscle cell contained in dorsal region of the whole animal 
                    dorsal-ventral muscle cell contained in head 
                    dorsal-ventral muscle cell contained in parapharyngeal region 
                    dorsal-ventral muscle cell contained in posterior region of the whole animal 
                    dorsal-ventral muscle cell contained in prepharyngeal region 
                    dorsal-ventral muscle cell contained in tail 
                    dorsal-ventral muscle cell contained in ventral region of the whole animal 
A premeiotic female germ cell (i.e., a diploid female germline stem cell or transit amplifying oogonial cell).
Expand early female germ cell relations
                    early female germ cell is a female germ cell 
                    early female germ cell is a material entity 
                    early female germ cell existence overlaps adult hermaphrodite 
                    early female germ cell existence overlaps juvenile 
                    early female germ cell part of ovary 
                    early female germ cell existence starts during or after juvenile 
                    early female germ cell contained in anterior region of the whole animal 
                    early female germ cell contained in prepharyngeal region 
                    early female germ cell contained in ventral region of the whole animal 
A premeiotic male germ cell (i.e., a spermatogonial stem cell or transit amplifying spermatogonial cell).
Expand early male germ cell relations
                    early male germ cell is a male germ cell 
                    early male germ cell is a material entity 
                    early male germ cell existence overlaps adult hermaphrodite 
                    early male germ cell existence overlaps juvenile 
                    early male germ cell part of testis 
                    early male germ cell existence starts during or after juvenile 
                    early male germ cell contained in anterior region of the whole animal 
                    early male germ cell contained in copulatory region 
                    early male germ cell contained in dorsal region of the whole animal 
                    early male germ cell contained in parapharyngeal region 
                    early male germ cell contained in posterior region of the whole animal 
                    early male germ cell contained in prepharyngeal region 
                    early male germ cell contained in tail 
Turbellarian (freshwater flatworm) embryos that undergo a modified form of cleavage due to separation of oocyte and yolk. Yolk is not contained within oocytes, and is produced by somatic vitellogenic gland cells.
Expand ectolecithal embryo relations
                    ectolecithal embryo is a embryo 
                    ectolecithal embryo is a obsolete Schmidtea mediterranea developmental term 
A neuron which sends impulses peripherally to activate muscles or secretory cells.
Expand efferent neuron relations
                    efferent neuron is a neuron 
                    efferent neuron part of asexual organism 
                    efferent neuron part of peripheral nervous system 
A proteinaceous, semi-permeable shell housing yolk cells and one or more embryos.Egg capsules are anchored to a substrate via a stalk.
Expand egg capsule relations
                    egg capsule is a reproductive system product 
                    egg capsule produced by adult hermaphrodite 
A cell whose function is determined by its response to an electric signal.
Expand electrically responsive cell relations
                    electrically responsive cell is a terminally differentiated cell 
A cell that initiates an electrical signal and passes that signal to another cell.
Expand electrically signaling cell relations
                    electrically signaling cell is a terminally differentiated cell 
Spermatids expressing protein kinase A undergoing morphogenic changes to make mature sperm.
Expand elongate spermatid relations
                    elongate spermatid is a anatomical entity 
                    elongate spermatid is a spermatid 
                    elongate spermatid develops from round spermatid 
Anatomical entity that comprises the organism in the early stages of growth and differentiation that are characterized by cleavage, the laying down of fundamental tissues, and the formation of primitive organs and organ systems. For example, for mammals, the process would begin with zygote formation and end with birth. For insects, the process would begin at zygote formation and end with larval hatching. For plant zygotic embryos, this would be from zygote formation to the end of seed dormancy. For plant vegetative embryos, this would be from the initial determination of the cell or group of cells to form an embryo until the point when the embryo becomes independent of the parent plant.
Expand embryo relations
                    embryo is a reproductive system product 
                    embryo is a whole organism 
A cell of the embryo.
Expand embryonic cell relations
                    embryonic cell is a C4 
                    embryonic cell is a cell 
                    embryonic cell specific to embryo 
A cryptic digestive system in Stage 3-6 embryos comprised of temporary embryonic cell types and organs, including the embryonic pharynx and primitive gut cells. Embryonic gut cells, likely produced from blastomeres, form a phagocytic tissue layer surrounding the inner gut cavity during Stages 4-6. It is not known whether the embryonic gut is temporary embryonic tissue or a definitive tissue. For convenience, the embryonic gut is currently designated as an extraembryonic structure because cell type specific markers for the embryonic gut do not stain the definitive gut in hatchlings or adult animals.
Expand embryonic digestive system relations
                    embryonic digestive system is a extraembryonic structure 
                    embryonic digestive system is a independent continuant 
                    embryonic digestive system existence overlaps Stage 2 
                    embryonic digestive system existence overlaps Stage 3 
                    embryonic digestive system existence overlaps Stage 4 
                    embryonic digestive system existence overlaps Stage 5 
                    embryonic digestive system existence overlaps Stage 6 
                    embryonic digestive system existence overlaps Stage 7 
                    embryonic digestive system specific to embryo 
                    embryonic digestive system existence starts during or after Stage 2 
                    embryonic digestive system existence ends during or before Stage 7 
                    embryonic digestive system existence ends during or before Stage 7 
A cryptic digestive cavity comprised of phagocytic embryonic gut cells.
Expand embryonic gut relations
                    embryonic gut is a extraembryonic organ 
                    embryonic gut is a material entity 
                    embryonic gut existence overlaps Stage 4 
                    embryonic gut existence overlaps Stage 5 
                    embryonic gut existence overlaps Stage 6 
                    embryonic gut part of embryonic digestive system 
                    embryonic gut existence starts during or after Stage 4 
                    embryonic gut contained in aboral hemisphere 
                    embryonic gut contained in oral hemisphere 
                    embryonic gut existence ends during or before Stage 6 
                    embryonic gut existence ends during or before Stage 6 
Cavity encompassed by the embryonic digestive tract, prior to formation of the branched defintive gut.
Expand embryonic gut cavity relations
                    embryonic gut cavity is a anatomical cavity 
                    embryonic gut cavity is a material entity 
                    embryonic gut cavity existence overlaps Stage 3 
                    embryonic gut cavity existence overlaps Stage 4 
                    embryonic gut cavity existence overlaps Stage 5 
                    embryonic gut cavity existence overlaps Stage 6 
                    embryonic gut cavity existence overlaps Stage 7 
                    embryonic gut cavity specific to embryo 
                    embryonic gut cavity part of embryonic gut 
                    embryonic gut cavity existence starts during or after Stage 3 
                    embryonic gut cavity contained in aboral hemisphere 
                    embryonic gut cavity contained in oral hemisphere 
                    embryonic gut cavity existence ends during or before Stage 7 
                    embryonic gut cavity existence ends during or before Stage 7 
Dispersed, phagocytic gut cells that appear during Stage 4 and ultimately generate a honeycomb-like lattice surrounding the central gut cavity in Stage 5 embryos. Early embryonic gut cell specific transcripts are expressed from Stage 4-6, and are downregulated during Stage 7.
Expand embryonic gut cell relations
                    embryonic gut cell is a anatomical entity 
                    embryonic gut cell is a extraembryonic cell 
                    embryonic gut cell is a material entity 
                    embryonic gut cell existence overlaps Stage 4 
                    embryonic gut cell existence overlaps Stage 5 
                    embryonic gut cell existence overlaps Stage 6 
                    embryonic gut cell part of embryonic gut 
                    embryonic gut cell existence starts during or after Stage 4 
                    embryonic gut cell contained in aboral hemisphere 
                    embryonic gut cell contained in oral hemisphere 
                    embryonic gut cell develops from blastomere 
                    embryonic gut cell existence ends during or before Stage 6 
                    embryonic gut cell existence ends during or before Stage 6 
The surface of phagocytic embryonic gut cells in contact with ingested yolk cells.
Expand embryonic gut cell surface relations
                    embryonic gut cell surface is a anatomical surface 
                    embryonic gut cell surface existence overlaps Stage 4 
                    embryonic gut cell surface existence overlaps Stage 5 
                    embryonic gut cell surface existence overlaps Stage 6 
                    embryonic gut cell surface specific to embryo 
                    embryonic gut cell surface part of embryonic gut cell 
                    embryonic gut cell surface existence starts during or after Stage 4 
                    embryonic gut cell surface existence ends during or before Stage 6 
                    embryonic gut cell surface existence ends during or before Stage 6 
An innervated, muscular pump that ingests yolk cells into the gut cavity. The embryonic pharynx is an extraembryonic tissue that forms during Stage 2, functions during Stages 3-5, and degenerates during Stages 6-7.
Expand embryonic pharynx relations
                    embryonic pharynx is a anatomical entity 
                    embryonic pharynx is a extraembryonic organ 
                    embryonic pharynx is a material entity 
                    embryonic pharynx existence overlaps Stage 2 
                    embryonic pharynx existence overlaps Stage 3 
                    embryonic pharynx existence overlaps Stage 4 
                    embryonic pharynx existence overlaps Stage 5 
                    embryonic pharynx existence overlaps Stage 6 
                    embryonic pharynx part of embryonic digestive system 
                    embryonic pharynx existence starts during or after Stage 2 
                    embryonic pharynx contained in oral hemisphere 
                    embryonic pharynx develops from blastomere 
                    embryonic pharynx existence ends during or before Stage 6 
                    embryonic pharynx existence ends during or before Stage 6 
Differentiated muscle cell present in a circular muscle fiber of the embryonic pharynx.
Expand embryonic pharynx circular muscle cell relations
                    embryonic pharynx circular muscle cell is a anatomical entity 
                    embryonic pharynx circular muscle cell is a extraembryonic cell 
                    embryonic pharynx circular muscle cell is a material entity 
                    embryonic pharynx circular muscle cell is a muscle cell 
                    embryonic pharynx circular muscle cell existence overlaps Stage 2 
                    embryonic pharynx circular muscle cell existence overlaps Stage 3 
                    embryonic pharynx circular muscle cell existence overlaps Stage 4 
                    embryonic pharynx circular muscle cell existence overlaps Stage 5 
                    embryonic pharynx circular muscle cell existence overlaps Stage 6 
                    embryonic pharynx circular muscle cell part of embryonic pharynx 
                    embryonic pharynx circular muscle cell existence starts during or after Stage 2 
                    embryonic pharynx circular muscle cell contained in oral hemisphere 
                    embryonic pharynx circular muscle cell develops from blastomere 
                    embryonic pharynx circular muscle cell existence ends during or before Stage 6 
                    embryonic pharynx circular muscle cell existence ends during or before Stage 6 
foxA1+ epithelial cell contained in the embryonic pharynx.
Expand embryonic pharynx epithelial cell relations
                    embryonic pharynx epithelial cell is a anatomical entity 
                    embryonic pharynx epithelial cell is a epithelial cell 
                    embryonic pharynx epithelial cell is a extraembryonic cell 
                    embryonic pharynx epithelial cell is a material entity 
                    embryonic pharynx epithelial cell existence overlaps Stage 2 
                    embryonic pharynx epithelial cell existence overlaps Stage 3 
                    embryonic pharynx epithelial cell existence overlaps Stage 4 
                    embryonic pharynx epithelial cell existence overlaps Stage 5 
                    embryonic pharynx epithelial cell existence overlaps Stage 6 
                    embryonic pharynx epithelial cell part of embryonic pharynx 
                    embryonic pharynx epithelial cell existence starts during or after Stage 2 
                    embryonic pharynx epithelial cell contained in oral hemisphere 
                    embryonic pharynx epithelial cell develops from blastomere 
                    embryonic pharynx epithelial cell existence ends during or before Stage 6 
                    embryonic pharynx epithelial cell existence ends during or before Stage 6 
A lumen enclosed by the embryonic pharynx epithelial cells through which yolk cells are transported into the embryonic gut cavity.
Expand embryonic pharynx lumen relations
                    embryonic pharynx lumen is a anatomical entity 
                    embryonic pharynx lumen is a lumen 
                    embryonic pharynx lumen is a material entity 
                    embryonic pharynx lumen existence overlaps Stage 3 
                    embryonic pharynx lumen existence overlaps Stage 4 
                    embryonic pharynx lumen existence overlaps Stage 5 
                    embryonic pharynx lumen existence overlaps Stage 6 
                    embryonic pharynx lumen specific to embryo 
                    embryonic pharynx lumen part of embryonic pharynx 
                    embryonic pharynx lumen immediately deep to embryonic pharynx lumen epithelial surface 
                    embryonic pharynx lumen existence starts during or after Stage 3 
                    embryonic pharynx lumen contained in oral hemisphere 
                    embryonic pharynx lumen existence ends during or before Stage 6 
                    embryonic pharynx lumen existence ends during or before Stage 6 
The epithelial cell surface lining the embryonic pharynx lumen.
Expand embryonic pharynx lumen epithelial surface relations
                    embryonic pharynx lumen epithelial surface is a anatomical surface 
                    embryonic pharynx lumen epithelial surface existence overlaps Stage 2 
                    embryonic pharynx lumen epithelial surface existence overlaps Stage 3 
                    embryonic pharynx lumen epithelial surface existence overlaps Stage 4 
                    embryonic pharynx lumen epithelial surface existence overlaps Stage 5 
                    embryonic pharynx lumen epithelial surface existence overlaps Stage 6 
                    embryonic pharynx lumen epithelial surface specific to embryo 
                    embryonic pharynx lumen epithelial surface part of embryonic pharynx 
                    embryonic pharynx lumen epithelial surface existence starts during or after Stage 2 
                    embryonic pharynx lumen epithelial surface existence ends during or before Stage 6 
                    embryonic pharynx lumen epithelial surface existence ends during or before Stage 6 
A neuronal cell innervating the embryonic pharynx. Four neurons innervate the radial muscle fibers that ring the oral opening.
Expand embryonic pharynx neuron relations
                    embryonic pharynx neuron is a anatomical entity 
                    embryonic pharynx neuron is a extraembryonic cell 
                    embryonic pharynx neuron is a material entity 
                    embryonic pharynx neuron is a neuron 
                    embryonic pharynx neuron existence overlaps Stage 2 
                    embryonic pharynx neuron existence overlaps Stage 3 
                    embryonic pharynx neuron existence overlaps Stage 4 
                    embryonic pharynx neuron existence overlaps Stage 5 
                    embryonic pharynx neuron existence overlaps Stage 6 
                    embryonic pharynx neuron part of embryonic pharynx 
                    embryonic pharynx neuron existence starts during or after Stage 2 
                    embryonic pharynx neuron contained in oral hemisphere 
                    embryonic pharynx neuron develops from blastomere 
                    embryonic pharynx neuron existence ends during or before Stage 6 
                    embryonic pharynx neuron existence ends during or before Stage 6 
Differentiated radial muscle cell present in the embryonic pharynx.
Expand embryonic pharynx radial muscle cell relations
                    embryonic pharynx radial muscle cell is a anatomical entity 
                    embryonic pharynx radial muscle cell is a extraembryonic cell 
                    embryonic pharynx radial muscle cell is a material entity 
                    embryonic pharynx radial muscle cell is a muscle cell 
                    embryonic pharynx radial muscle cell existence overlaps Stage 2 
                    embryonic pharynx radial muscle cell existence overlaps Stage 3 
                    embryonic pharynx radial muscle cell existence overlaps Stage 4 
                    embryonic pharynx radial muscle cell existence overlaps Stage 5 
                    embryonic pharynx radial muscle cell existence overlaps Stage 6 
                    embryonic pharynx radial muscle cell part of embryonic pharynx 
                    embryonic pharynx radial muscle cell existence starts during or after Stage 2 
                    embryonic pharynx radial muscle cell contained in oral hemisphere 
                    embryonic pharynx radial muscle cell develops from blastomere 
                    embryonic pharynx radial muscle cell existence ends during or before Stage 6 
                    embryonic pharynx radial muscle cell existence ends during or before Stage 6 
Anatomical structure that is part of an embryo.
Expand embryonic structure relations
                    embryonic structure is a developing anatomical structure 
Anatomical structure which is a subdivision of a whole developing/ embryonic organism, consisting of components of multiple anatomical systems.
Expand embryonic subdivision relations
                    embryonic subdivision is a organism subdivision 
                    embryonic subdivision specific to embryo 
The parenchymal space between the gut cavity and the primitive ectoderm containing undifferentiated blastomeres in Stage 3-5 embryos.
Expand embryonic wall relations
                    embryonic wall is a embryonic subdivision 
                    embryonic wall is a independent continuant 
                    embryonic wall existence overlaps Stage 3 
                    embryonic wall existence overlaps Stage 4 
                    embryonic wall existence overlaps Stage 5 
                    embryonic wall existence starts during or after Stage 3 
                    embryonic wall existence ends during or before Stage 5 
                    embryonic wall existence ends during or before Stage 5 
Network of interconnected, flattened, and/or tubular membrane, known as cisternae. This membrane is contiguous with the outer nuclear membrane. The endoplasmic reticulum is involved in both protein and lipid synthesis.
Expand endoplasmic reticulum relations
                    endoplasmic reticulum is a intracellular membrane-bounded organelle 
cell which is part of the enteric musculature
Expand enteric muscle cell relations
                    enteric muscle cell is a independent continuant 
Visceral muscle surrounding the gut.
Expand enteric musculature relations
                    enteric musculature is a material entity 
                    enteric musculature is a visceral musculature 
                    enteric musculature existence overlaps adult hermaphrodite 
                    enteric musculature existence overlaps asexual adult 
                    enteric musculature existence overlaps juvenile 
                    enteric musculature existence overlaps Stage 7 
                    enteric musculature existence overlaps Stage 8 
                    enteric musculature part of digestive system 
                    enteric musculature existence starts during or after Stage 7 
                    enteric musculature contained in anterior region of the whole animal 
                    enteric musculature contained in copulatory region 
                    enteric musculature contained in head 
                    enteric musculature contained in parapharyngeal region 
                    enteric musculature contained in posterior region of the whole animal 
                    enteric musculature contained in prepharyngeal region 
                    enteric musculature contained in tail 
A neruon whose cell body is within an autonomic ganglion.
Expand enteric neuron relations
                    enteric neuron is a autonomic neuron 
An epithelial cell of the integument (the outer layer of an organism).
Expand epidermal cell relations
                    epidermal cell is a epithelial cell 
Mitotically active zeta neoblasts and their post-mitotic descendants which undergo progressive differentiation and outward directed movement through the mesenchyme prior to incorporation into the epidermis, where terminal differentiation occurs.
Expand epidermal progenitor cell relations
                    epidermal progenitor cell is a anatomical entity 
                    epidermal progenitor cell is a progenitor cell 
                    epidermal progenitor cell develops into dorsal midline 
Rhabdites located within epidermal cells.
Expand epidermal rhabdite relations
                    epidermal rhabdite is a independent continuant 
                    epidermal rhabdite is a rhabdite 
                    epidermal rhabdite existence overlaps adult hermaphrodite 
                    epidermal rhabdite existence overlaps asexual adult 
                    epidermal rhabdite existence overlaps juvenile 
                    epidermal rhabdite part of dorsal epidermis cell 
                    epidermal rhabdite part of ventral epidermis cell 
A single cell layer of post-mitotic epithelial cells containing ciliated and non-ciliated cell types forming the exterior surface of the animal.
Expand epidermis relations
                    epidermis is a anatomical entity 
                    epidermis is a material entity 
                    epidermis is a organ 
                    epidermis existence overlaps adult hermaphrodite 
                    epidermis existence overlaps asexual adult 
                    epidermis existence overlaps juvenile 
                    epidermis existence overlaps Stage 5 
                    epidermis existence overlaps Stage 6 
                    epidermis existence overlaps Stage 7 
                    epidermis existence overlaps Stage 8 
                    epidermis part of integumental system 
                    epidermis existence starts during or after Stage 5 
                    epidermis contained in anterior region of the whole animal 
                    epidermis contained in copulatory region 
                    epidermis contained in dorsal region of the whole animal 
                    epidermis contained in head 
                    epidermis contained in parapharyngeal region 
                    epidermis contained in posterior region of the whole animal 
                    epidermis contained in prepharyngeal region 
                    epidermis contained in tail 
                    epidermis contained in ventral region of the whole animal 
                    epidermis develops from epidermal progenitor cell 
A cell that is usually found in a two-dimensional sheet with a free surface. The cell has a cytoskeleton that allows for tight cell to cell contact and for cell polarity where the apical part is directed towards the lumen and the basal part to the basal lamina.
Expand epithelial cell relations
                    epithelial cell is a terminally differentiated cell 
A part of an epithelial cell.
Expand epithelial cell component relations
                    epithelial cell component is a cellular_component 
                    epithelial cell component is a continuant 
                    epithelial cell component part of epithelial cell 
The avascular cellular layers that cover body surfaces and cavities and may form glands.
Expand epithelium relations
                    epithelium is a tissue 
The lipid bilayer surrounding the endoplasmic reticulum.
Expand ER membrane relations
                    ER membrane is a bounding membrane of organelle 
                    ER membrane part of endoplasmic reticulum 
Attachment between the triclad gut and the proximal end of the pharynx.
Expand esophagus relations
                    esophagus is a material entity 
                    esophagus is a tissue 
                    esophagus existence overlaps adult hermaphrodite 
                    esophagus existence overlaps asexual adult 
                    esophagus existence overlaps juvenile 
                    esophagus part of pharynx 
                    esophagus contained in parapharyngeal region 
                    esophagus contained in posterior region of the whole animal 
A dispersed and relatively uncompacted form of chromatin.
Expand euchromatin relations
                    euchromatin is a chromatin 
The black pigment that gives non-neuronal pigment cells of the optic cup their characteristic color.
Expand eumelanin relations
                    eumelanin is a anatomical entity 
                    eumelanin is a cellular_component 
                    eumelanin is a independent continuant 
                    eumelanin existence overlaps adult hermaphrodite 
                    eumelanin existence overlaps asexual adult 
                    eumelanin existence overlaps juvenile 
                    eumelanin existence overlaps Stage 7 
                    eumelanin existence overlaps Stage 8 
                    eumelanin part of melanosome 
                    eumelanin existence starts during or after Stage 7 
A motor neuron that is capable of directly inducing muscle contraction.
Expand excitatory motor neuron relations
                    excitatory motor neuron is a motor neuron 
                    excitatory motor neuron is a peripheral nervous system neuron 
A cell involved in the elimination of metabolic and foreign toxins, and in maintaining the ionic, acid-base and water balance of biological fluids.
Expand excretory cell relations
                    excretory cell is a terminally differentiated cell 
                    excretory cell part of renal system 
A structure lying external to one or more cells, which provides structural support, biochemical or biomechanical cues for cells or tissues.
Expand extracellular matrix relations
                    extracellular matrix is a acellular anatomical structure 
                    extracellular matrix is a independent continuant 
                    extracellular matrix existence overlaps adult hermaphrodite 
                    extracellular matrix existence overlaps asexual adult 
                    extracellular matrix existence overlaps juvenile 
Organized structure of distinctive morphology and function, occurring outside the cell. Includes, for example, extracellular membrane vesicles (EMVs) and the cellulosomes of anaerobic bacteria and fungi.
Expand extracellular organelle relations
                    extracellular organelle is a organelle 
That part of a multicellular organism outside the cells proper, usually taken to be outside the plasma membranes, and occupied by fluid.
Expand extracellular space relations
                    extracellular space is a acellular anatomical structure 
Post-mitotic, terminally differentiated cells which, give rise to temporary embryonic tissues.
Expand extraembryonic cell relations
                    extraembryonic cell is a terminally differentiated cell 
                    extraembryonic cell specific to embryo 
Organ that is associated with an embryo and derived from the zygote from which it develops, but which does not contribute to the embryo proper or to structures that are part of the same organism after embryogenesis.
Expand extraembryonic organ relations
                    extraembryonic organ is a organ 
                    extraembryonic organ specific to embryo 
                    extraembryonic organ part of embryo 
A multicellular anatomical structure that is associated with an embryo and derived from the zygote from which it develops, but which does not contribute to the embryo proper or to structures that are part of the same organism after embryogenesis.
Expand extraembryonic structure relations
                    extraembryonic structure is a developing anatomical structure 
An organ that detects light.
Expand eye relations
                    eye is a anatomical entity 
                    eye is a material entity 
                    eye is a organ 
                    eye existence overlaps adult hermaphrodite 
                    eye existence overlaps asexual adult 
                    eye existence overlaps juvenile 
                    eye existence overlaps Stage 7 
                    eye existence overlaps Stage 8 
                    eye part of visual system 
                    eye existence starts during or after Stage 7 
                    eye contained in anterior region of the whole animal 
                    eye contained in dorsal region of the whole animal 
                    eye contained in head 
                    eye develops from trail cell 
cell which is part of the eye
Expand eye cell relations
                    eye cell is a anatomical entity 
                    eye cell is a independent continuant 
This primordium develops into eye
Expand eye primordium relations
                    eye primordium is a anatomical entity 
                    eye primordium is a primordium 
                    eye primordium develops into eye 
Any number of cells from dissociated planarian tissue sorted via a FACS sorter for any parameter.
Expand FACS sorted cell population relations
                    FACS sorted cell population is a derived cell population 
Female germ cell is a germ cell that supports female gamete production.
Expand female germ cell relations
                    female germ cell is a germ cell 
Cells expressing nanos that are located ventrally in the location that the ovaries form. Primordial germ cells are present in both asexual adults and sexual hermaphrodites. This term may be redundant with oogonial stem cell.
Expand female primordial germ cell relations
                    female primordial germ cell is a female germ cell 
                    female primordial germ cell is a material entity 
                    female primordial germ cell is a stem cell 
                    female primordial germ cell existence overlaps adult hermaphrodite 
                    female primordial germ cell existence overlaps asexual adult 
                    female primordial germ cell existence overlaps juvenile 
                    female primordial germ cell contained in anterior region of the whole animal 
                    female primordial germ cell contained in head 
                    female primordial germ cell contained in prepharyngeal region 
                    female primordial germ cell contained in ventral region of the whole animal 
A form of asexual reproduction resulting in self-amputation of posterior tissue, generating an anterior fragment and a fission fragment.
Expand fission relations
                    fission is a wound 
A fragment derived from a spontaneous or induced fission event.
Expand fission fragment relations
                    fission fragment is a fragment 
Transverse anatomical plane, located approximately 1-2 mm from the posterior extremity of an adult animal, at which fission occurs.
Expand fission plane relations
                    fission plane is a anatomical plane 
Planarian undulipodia consisting of spermatazoa cell posterior protrusions. Planarian spermatozoa contain two flagella and are composed of 9 + 1 axonemal microtubule arrangements in their flagella (markedly different from the 9 + 2 structures generally observed in sperm of other animals).
Expand flagellum relations
                    flagellum is a anatomical entity 
                    flagellum is a cell projection 
                    flagellum is a independent continuant 
                    flagellum specific to sperm 
                    flagellum part of sperm 
Terminal structure of protonephridia unit; consists of flame cells.
Expand flame bulb relations
                    flame bulb is a anatomical entity 
                    flame bulb is a material entity 
                    flame bulb is a tissue 
                    flame bulb existence overlaps adult hermaphrodite 
                    flame bulb existence overlaps asexual adult 
                    flame bulb existence overlaps juvenile 
                    flame bulb part of protonephridia 
                    flame bulb contained in anterior region of the whole animal 
                    flame bulb contained in copulatory region 
                    flame bulb contained in dorsal region of the whole animal 
                    flame bulb contained in head 
                    flame bulb contained in parapharyngeal region 
                    flame bulb contained in posterior region of the whole animal 
                    flame bulb contained in prepharyngeal region 
                    flame bulb develops from protonephridial progenitor cell 
Terminal structure of the protonephridia unit, capping the proximal tubules. Flame cells are defined by the filtration weir or filtration diaphragm, which consists of closely apposed strands of cytoplasm surrounding a central cilia bundle, and by numerous microvilli between weir and cilia. Positive for acetyated tubulin.
Expand flame cell relations
                    flame cell is a anatomical entity 
                    flame cell is a material entity 
                    flame cell is a terminally differentiated cell 
                    flame cell existence overlaps adult hermaphrodite 
                    flame cell existence overlaps asexual adult 
                    flame cell existence overlaps juvenile 
                    flame cell adjacent to proximal tubule 
                    flame cell part of flame bulb 
                    flame cell contained in anterior region of the whole animal 
                    flame cell contained in copulatory region 
                    flame cell contained in dorsal region of the whole animal 
                    flame cell contained in head 
                    flame cell contained in parapharyngeal region 
                    flame cell contained in posterior region of the whole animal 
                    flame cell contained in prepharyngeal region 
                    flame cell contained in tail 
lumen which is part of the flame cell
Expand flame cell lumen relations
                    flame cell lumen is a anatomical entity 
                    flame cell lumen is a protonephridial lumen 
                    flame cell lumen part of flame cell 
A piece of tissue isolated from the body.
Expand fragment relations
                    fragment is a regenerating anatomical structure 
germ cell cyst undergoing mitotic G1 phase
Expand G1 phase germ cell cyst relations
                    G1 phase germ cell cyst is a germ cell cyst 
                    G1 phase germ cell cyst contains process mitotic G1 phase 
neoblast undergoing mitotic G1 phase
Expand G1 phase neoblast relations
                    G1 phase neoblast is a neoblast 
                    G1 phase neoblast contains process mitotic G1 phase 
oogonial cell undergoing mitotic G1 phase
Expand G1 phase oogonial cell relations
                    G1 phase oogonial cell is a oogonial cell 
                    G1 phase oogonial cell contains process mitotic G1 phase 
oogonial stem cell undergoing mitotic G1 phase
Expand G1 phase oogonial stem cell relations
                    G1 phase oogonial stem cell is a oogonial stem cell 
                    G1 phase oogonial stem cell contains process mitotic G1 phase 
spermatogonial stem cell undergoing mitotic G1 phase
Expand G1 phase spermatogonial stem cell relations
                    G1 phase spermatogonial stem cell is a spermatogonial stem cell 
                    G1 phase spermatogonial stem cell contains process mitotic G1 phase 
spermatogonium undergoing mitotic G1 phase
Expand G1 phase spermatogonium relations
                    G1 phase spermatogonium is a spermatogonium 
                    G1 phase spermatogonium contains process mitotic G1 phase 
germ cell cyst undergoing mitotic G2 phase
Expand G2 phase germ cell cyst relations
                    G2 phase germ cell cyst is a germ cell cyst 
                    G2 phase germ cell cyst contains process mitotic G2 phase 
neoblast undergoing mitotic G2 phase
Expand G2 phase neoblast relations
                    G2 phase neoblast is a neoblast 
                    G2 phase neoblast contains process mitotic G2 phase 
oogonial cell undergoing mitotic G2 phase
Expand G2 phase oogonial cell relations
                    G2 phase oogonial cell is a oogonial cell 
                    G2 phase oogonial cell contains process mitotic G2 phase 
oogonial stem cell undergoing mitotic G2 phase
Expand G2 phase oogonial stem cell relations
                    G2 phase oogonial stem cell is a oogonial stem cell 
                    G2 phase oogonial stem cell contains process mitotic G2 phase 
spermatogonial stem cell undergoing mitotic G2 phase
Expand G2 phase spermatogonial stem cell relations
                    G2 phase spermatogonial stem cell is a spermatogonial stem cell 
                    G2 phase spermatogonial stem cell contains process mitotic G2 phase 
spermatogonium undergoing mitotic G2 phase
Expand G2 phase spermatogonium relations
                    G2 phase spermatogonium is a spermatogonium 
                    G2 phase spermatogonium contains process mitotic G2 phase 
Neurons that express glutamine decarboxylase.
Expand GABAergic neuron relations
                    GABAergic neuron is a independent continuant 
                    GABAergic neuron is a neurosecretory neuron 
                    GABAergic neuron existence overlaps adult hermaphrodite 
                    GABAergic neuron existence overlaps asexual adult 
                    GABAergic neuron existence overlaps juvenile 
A mature sexual reproductive cell having a single set of unpaired chromosomes.
Expand gamete relations
                    gamete is a germ cell 
                    gamete is a reproductive system product 
                    gamete existence overlaps adult hermaphrodite 
                    gamete existence overlaps juvenile 
                    gamete existence starts during or after juvenile 
                    gamete produced by gonad 
An abundant neoblast subclass, exhibiting enriched expression of gata456a, hnf4, prox-1 and nkx2.2, implicated in maintenance and regeneration of the definitive gut.
Expand gamma neoblast relations
                    gamma neoblast is a neoblast 
                    gamma neoblast part of digestive system 
A biological tissue mass of nerve cell bodies.
Expand ganglion relations
                    ganglion is a tissue 
                    ganglion part of central nervous system 
                    ganglion part of peripheral nervous system 
A cell-cell junction composed of pannexins or innexins and connexins, two different families of channel-forming proteins.
Expand gap junction relations
                    gap junction is a cell-cell junction 
cell which is part of the gastrodermis
Expand gastrodermal cell relations
                    gastrodermal cell is a anatomical entity 
                    gastrodermal cell is a independent continuant 
A thin net of single nerve fibers located around the gut.
Expand gastrodermal plexus relations
                    gastrodermal plexus is a material entity 
                    gastrodermal plexus is a nerve plexus 
                    gastrodermal plexus existence overlaps adult hermaphrodite 
                    gastrodermal plexus existence overlaps asexual adult 
                    gastrodermal plexus existence overlaps juvenile 
                    gastrodermal plexus part of digestive system 
                    gastrodermal plexus contained in anterior region of the whole animal 
                    gastrodermal plexus contained in copulatory region 
                    gastrodermal plexus contained in head 
                    gastrodermal plexus contained in parapharyngeal region 
                    gastrodermal plexus contained in posterior region of the whole animal 
                    gastrodermal plexus contained in prepharyngeal region 
                    gastrodermal plexus contained in tail 
The single cell layer columnar epithelial lining of the intestine. The gastrodermis is surrounded by a basal lamina and enteric muscle.
Expand gastrodermis relations
                    gastrodermis is a anatomical entity 
                    gastrodermis is a epithelium 
                    gastrodermis is a material entity 
                    gastrodermis existence overlaps adult hermaphrodite 
                    gastrodermis existence overlaps asexual adult 
                    gastrodermis existence overlaps juvenile 
                    gastrodermis part of gut 
                    gastrodermis contained in anterior region of the whole animal 
                    gastrodermis contained in copulatory region 
                    gastrodermis contained in dorsal region of the whole animal 
                    gastrodermis contained in head 
                    gastrodermis contained in parapharyngeal region 
                    gastrodermis contained in posterior region of the whole animal 
                    gastrodermis contained in prepharyngeal region 
                    gastrodermis contained in tail 
                    gastrodermis contained in ventral region of the whole animal 
                    gastrodermis develops from gamma neoblast 
The surface of the gastrodermis in contact with the gut lumen.
Expand gastrodermis surface relations
                    gastrodermis surface is a anatomical surface 
                    gastrodermis surface existence overlaps adult hermaphrodite 
                    gastrodermis surface existence overlaps asexual adult 
                    gastrodermis surface existence overlaps juvenile 
                    gastrodermis surface part of gut 
A continuant that is dependent on one or other independent continuant bearers. For every instance of A requires some instance of (an independent continuant type) B but which instance of B serves can change from time to time.
Expand generically dependent continuant relations
                    generically dependent continuant is a continuant 
                    generically dependent continuant part of generically dependent continuant 
A chamber where egg capsules are formed. One or more zygotes and yolk cells produced by the vitelline glands collect in the genital atrium; glands surrounding the genital atrium produce the egg capsule shell.
Expand genital atrium relations
                    genital atrium is a anatomical cavity 
                    genital atrium is a material entity 
                    genital atrium existence overlaps adult hermaphrodite 
                    genital atrium existence overlaps juvenile 
                    genital atrium specific to Smed sexual biotype 
                    genital atrium part of reproductive system 
                    genital atrium existence starts during or after juvenile 
                    genital atrium contained in copulatory region 
                    genital atrium contained in posterior region of the whole animal 
1. A gamete (as an egg or sperm cell) or one of its antecedent cells. 2. A mature male or female germ cell usually possessing a haploid chromosome set and capable of initiating formation of a new diploid individual by fusion with a gamete of the opposite sex.
Expand germ cell relations
                    germ cell is a C4 
                    germ cell is a cell 
                    germ cell part of reproductive system 
A clonally-related group of interconnected spermatogonial or oogonial cells, enveloped by somatic gonadal cells.
Expand germ cell cyst relations
                    germ cell cyst is a reproductive structure 
                    germ cell cyst is a syncytium 
                    germ cell cyst existence overlaps asexual adult 
                    germ cell cyst part of gonad 
Stem cell that is the precursor of gametes.
Expand germline stem cell relations
                    germline stem cell is a anatomical entity 
                    germline stem cell is a independent continuant 
                    germline stem cell is a stem cell 
                    germline stem cell existence overlaps adult hermaphrodite 
                    germline stem cell existence overlaps asexual adult 
                    germline stem cell existence overlaps juvenile 
                    germline stem cell part of gonad 
                    germline stem cell develops from neoblast 
Specialized insunk epithelial cells located in the mesenchyme that participate in mucus secretion. They are characterized by elongated cell bodies with long cytoplasmic projections that terminate between, or penetrate directly throughepithelial cells and form a secretory pore at the surface.
Expand gland cell relations
                    gland cell is a epithelial cell 
A non-neuronal cell of the nervous system. They not only provide physical support, but also respond to injury, regulate the ionic and chemical composition of the extracellular milieu, guide neuronal migration during development, and exchange metabolites with neurons.
Expand glial cell relations
                    glial cell is a material entity 
                    glial cell is a neuron associated cell (sensu Nematoda and Protostomia) 
                    glial cell existence overlaps adult hermaphrodite 
                    glial cell existence overlaps asexual adult 
                    glial cell existence overlaps juvenile 
                    glial cell part of neuropil 
                    glial cell contained in anterior region of the whole animal 
                    glial cell contained in copulatory region 
                    glial cell contained in dorsal region of the whole animal 
                    glial cell contained in head 
                    glial cell contained in parapharyngeal region 
                    glial cell contained in posterior region of the whole animal 
                    glial cell contained in prepharyngeal region 
                    glial cell contained in tail 
                    glial cell contained in ventral region of the whole animal 
Neurons that express the biogenic amine glutamate.
Expand glutamatergic neuron relations
                    glutamatergic neuron is a independent continuant 
                    glutamatergic neuron is a neurosecretory neuron 
                    glutamatergic neuron existence overlaps adult hermaphrodite 
                    glutamatergic neuron existence overlaps asexual adult 
                    glutamatergic neuron existence overlaps juvenile 
Cytoplasmic bead-like structures of animal cells, visible by electron microscope. Each granule is a functional unit with the biosynthesis and catabolism of glycogen being catalyzed by enzymes bound to the granule surface.
Expand glycogen granule relations
                    glycogen granule is a intracellular granule 
Secretory cells that release digestive enzymes into the lumen of the intestine.
Expand goblet cell relations
                    goblet cell is a anatomical entity 
                    goblet cell is a material entity 
                    goblet cell is a secretory cell 
                    goblet cell existence overlaps adult hermaphrodite 
                    goblet cell existence overlaps asexual adult 
                    goblet cell existence overlaps juvenile 
                    goblet cell part of gastrodermis 
                    goblet cell contained in anterior region of the whole animal 
                    goblet cell contained in copulatory region 
                    goblet cell contained in dorsal region of the whole animal 
                    goblet cell contained in head 
                    goblet cell contained in parapharyngeal region 
                    goblet cell contained in posterior region of the whole animal 
                    goblet cell contained in prepharyngeal region 
                    goblet cell contained in tail 
                    goblet cell contained in ventral region of the whole animal 
A compound membranous cytoplasmic organelle of eukaryotic cells, consisting of flattened, ribosome-free vesicles arranged in a more or less regular stack. The Golgi apparatus differs from the endoplasmic reticulum in often having slightly thicker membranes, appearing in sections as a characteristic shallow semicircle so that the convex side (cis or entry face) abuts the endoplasmic reticulum, secretory vesicles emerging from the concave side (trans or exit face). In vertebrate cells there is usually one such organelle, while in invertebrates and plants, where they are known usually as dictyosomes, there may be several scattered in the cytoplasm. The Golgi apparatus processes proteins produced on the ribosomes of the rough endoplasmic reticulum; such processing includes modification of the core oligosaccharides of glycoproteins, and the sorting and packaging of proteins for transport to a variety of cellular locations. Three different regions of the Golgi are now recognized both in terms of structure and function: cis, in the vicinity of the cis face, trans, in the vicinity of the trans face, and medial, lying between the cis and trans regions.
Expand Golgi apparatus relations
                    Golgi apparatus is a intracellular membrane-bounded organelle 
Reproductive organ that produces and releases eggs (ovary) or sperm (testis).
Expand gonad relations
                    gonad is a reproductive organ 
This primordium develops into gonad
Expand gonad primoridium relations
                    gonad primoridium is a anatomical entity 
                    gonad primoridium is a primordium 
                    gonad primoridium develops into gonad 
The gonopore, a component of the copulatory apparatus, is an opening located on the ventral side of the animal posterior to the pharynx. The gonopore is the sole point of exit and entry for the reproductive system, allowing from reciprocal exchange of sperm during copulation and egg capsule laying.
Expand gonopore relations
                    gonopore is a material entity 
                    gonopore is a pore 
                    gonopore existence overlaps adult hermaphrodite 
                    gonopore existence overlaps juvenile 
                    gonopore specific to Smed sexual biotype 
                    gonopore part of copulatory apparatus 
                    gonopore existence starts during or after juvenile 
                    gonopore contained in copulatory region 
                    gonopore contained in posterior region of the whole animal 
                    gonopore contained in ventral region of the whole animal 
The planarian triclad gut contains a central anterior gut branch connected to two posterior gut branches arranged around the pharynx. Secondary gut branches extend laterally from the primary gut branches, while tertiary gut branches extend from the secondary branches. Food and waste enter and exit the gut through the pharynx.
Expand gut relations
                    gut is a anatomical entity 
                    gut is a material entity 
                    gut is a organ 
                    gut existence overlaps adult hermaphrodite 
                    gut existence overlaps asexual adult 
                    gut existence overlaps juvenile 
                    gut existence overlaps Stage 5 
                    gut existence overlaps Stage 6 
                    gut existence overlaps Stage 7 
                    gut existence overlaps Stage 8 
                    gut part of digestive system 
                    gut existence starts during or after Stage 5 
                    gut contained in anterior region of the whole animal 
                    gut contained in copulatory region 
                    gut contained in dorsal region of the whole animal 
                    gut contained in head 
                    gut contained in parapharyngeal region 
                    gut contained in posterior region of the whole animal 
                    gut contained in prepharyngeal region 
                    gut contained in tail 
                    gut contained in ventral region of the whole animal 
                    gut develops from gamma neoblast 
The triclad planarian gut is serially bifrucated into connected lumens where each bifrucation is a branch.
Expand gut branch relations
                    gut branch is a anatomical entity 
                    gut branch is a independent continuant 
                    gut branch is a tissue 
                    gut branch existence overlaps adult hermaphrodite 
                    gut branch existence overlaps asexual adult 
                    gut branch existence overlaps juvenile 
                    gut branch part of gut 
The head is the anterior-most division of the body [GO]. A three dimensional compartment bounded by the anterior margin or the head and the posterior boundary of the cephalic ganglia (brain).
Expand head relations
                    head is a anatomical region 
                    head is a independent continuant 
                    head existence overlaps adult hermaphrodite 
                    head existence overlaps asexual adult 
                    head existence overlaps juvenile 
                    head existence overlaps Stage 7 
                    head existence overlaps Stage 8 
                    head anterior to prepharyngeal region 
blastema which develops into head
Expand head blastema relations
                    head blastema is a anatomical entity 
                    head blastema is a blastema 
                    head blastema develops into head 
A fragment derived from a prepharyngeal amputation encompassing the head.
Expand head fragment relations
                    head fragment is a fragment 
                    head fragment RO:0001000 head 
Peripheral region of the head.
Expand head margin relations
                    head margin is a dorsal ventral margin of the whole animal 
A compact and highly condensed form of chromatin.
Expand heterochromatin relations
                    heterochromatin is a chromatin 
PROG-2-5 positive granules that range in size from 0.5um to 1um present in epithelia and epithelia progenitor cells. These are distinct from rhabdites.
Expand Hyman vesicle relations
                    Hyman vesicle is a continuant 
                    Hyman vesicle is a independent continuant 
                    Hyman vesicle is a intracellular granule 
                    Hyman vesicle existence overlaps asexual adult 
Expand immaterial entity relations
                    immaterial entity is a independent continuant 
A breach of the epidermis made with a defined edge or point.
Expand incision relations
                    incision is a cut 
A continuant that is a bearer of quality and realizable entity entities, in which other entities inhere and which itself cannot inhere in anything.
Expand independent continuant relations
                    independent continuant is a continuant 
                    independent continuant part of independent continuant 
A generically dependent continuant that is about some thing.
Expand information content entity relations
                    information content entity is a generically dependent continuant 
                    information content entity IAO:0000136 entity 
Inner most body wall muscle fibers arrayed along the anteroposterior axis. These fibers are thicker than the outer longitudinal muscle fibers. The pattern of these muscles differs along the dorsoventral axis, with the dorsal arrangement converging at the central zone of the anterior pole. The ventral arrangement is more parallel or may diverge slightly as it approaches the ventral pole.
Expand inner longitudinal muscle cell relations
                    inner longitudinal muscle cell is a anatomical entity 
                    inner longitudinal muscle cell is a longitudinal muscle cell 
                    inner longitudinal muscle cell is a material entity 
                    inner longitudinal muscle cell existence overlaps adult hermaphrodite 
                    inner longitudinal muscle cell existence overlaps asexual adult 
                    inner longitudinal muscle cell existence overlaps juvenile 
                    inner longitudinal muscle cell contained in anterior region of the whole animal 
                    inner longitudinal muscle cell contained in copulatory region 
                    inner longitudinal muscle cell contained in dorsal region of the whole animal 
                    inner longitudinal muscle cell contained in head 
                    inner longitudinal muscle cell contained in parapharyngeal region 
                    inner longitudinal muscle cell contained in posterior region of the whole animal 
                    inner longitudinal muscle cell contained in prepharyngeal region 
                    inner longitudinal muscle cell contained in tail 
                    inner longitudinal muscle cell contained in ventral region of the whole animal 
                    inner longitudinal muscle cell develops from longitudinal muscle progenitor cell 
Gland or secretory cells sandwiched between muscle and epidermal layers in the pharynx.
Expand inner zone of gland cells relations
                    inner zone of gland cells is a material entity 
                    inner zone of gland cells is a tissue 
                    inner zone of gland cells existence overlaps adult hermaphrodite 
                    inner zone of gland cells existence overlaps asexual adult 
                    inner zone of gland cells existence overlaps juvenile 
                    inner zone of gland cells part of pharynx 
                    inner zone of gland cells contained in parapharyngeal region 
                    inner zone of gland cells contained in posterior region of the whole animal 
                    inner zone of gland cells contained in ventral region of the whole animal 
Connected anatomical system that forms a barrier between an animal and its environment. In vertebrates, the integumental system consists of the epidermis, dermis plus associated glands and adnexa such as hair and scales. In invertebrates, the integumental system may include cuticle.
Expand integumental system relations
                    integumental system is a anatomical system 
                    integumental system part of asexual organism 
                    integumental system part of sexual organism 
A cell junction that forms a connection between two or more cells in a multicellular organism; excludes direct cytoplasmic junctions such as ring canals.
Expand intercellular junction relations
                    intercellular junction is a cell-cell junction 
Most generally any neuron which is not motor or sensory. Interneurons may also refer to neurons whose axons remain within a particular brain region as contrasted with projection neurons which have axons projecting to other brain regions.
Expand interneuron relations
                    interneuron is a neuron 
                    interneuron part of central nervous system 
                    interneuron part of peripheral nervous system 
Absorptive digestive cells that engulf food particles for intracellular digestion.
Expand intestinal phagocyte relations
                    intestinal phagocyte is a anatomical entity 
                    intestinal phagocyte is a material entity 
                    intestinal phagocyte is a terminally differentiated cell 
                    intestinal phagocyte existence overlaps adult hermaphrodite 
                    intestinal phagocyte existence overlaps asexual adult 
                    intestinal phagocyte existence overlaps juvenile 
                    intestinal phagocyte part of gastrodermis 
                    intestinal phagocyte contained in anterior region of the whole animal 
                    intestinal phagocyte contained in copulatory region 
                    intestinal phagocyte contained in dorsal region of the whole animal 
                    intestinal phagocyte contained in head 
                    intestinal phagocyte contained in parapharyngeal region 
                    intestinal phagocyte contained in posterior region of the whole animal 
                    intestinal phagocyte contained in prepharyngeal region 
                    intestinal phagocyte contained in tail 
                    intestinal phagocyte contained in ventral region of the whole animal 
Cytoplasmic part which forms a distinctive granular particle, which may or may not be visible using light microscopy.
Expand intracellular granule relations
                    intracellular granule is a intracellular non-membrane-bounded organelle 
Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane and occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.
Expand intracellular membrane-bounded organelle relations
                    intracellular membrane-bounded organelle is a intracellular organelle 
                    intracellular membrane-bounded organelle is a membrane-bounded organelle 
Organized structure of distinctive morphology and function, not bounded by a lipid bilayer membrane and occurring within the cell. Includes ribosomes, the cytoskeleton and chromosomes
Expand intracellular non-membrane-bounded organelle relations
                    intracellular non-membrane-bounded organelle is a intracellular organelle 
                    intracellular non-membrane-bounded organelle is a non-membrane-bounded organelle 
Organized structure of distinctive morphology and function, occurring within the cell. Includes the nucleus, mitochondria, plastids, vacuoles, vesicles, ribosomes and the cytoskeleton. Excludes the plasma membrane.
Expand intracellular organelle relations
                    intracellular organelle is a intracellular part 
Any constituent part of the living contents of a cell; the matter contained within (but not including) the plasma membrane, usually taken to exclude large vacuoles and masses of secretory or ingested material. In eukaryotes it includes the nucleus and cytoplasm.
Expand intracellular part relations
                    intracellular part is a cellular_component 
is_about is a (currently) primitive relation that relates an information artifact to an entity.
A sexually immature member of the Schmidtea mediterranea sexuallly reproducing biotype.
Expand juvenile relations
                    juvenile is a life cycle stage 
                    juvenile is a obsolete Schmidtea mediterranea developmental stage 
                    juvenile is a whole organism 
                    juvenile specific to Smed sexual biotype 
piwi-1+, klf+ progenitor neoblasts required for production of cintillo+ sensory neurons.
Expand klf+ sensory neuron progenitor cell relations
                    klf+ sensory neuron progenitor cell is a neoblast 
                    klf+ sensory neuron progenitor cell is a neural progenitor cell 
                    klf+ sensory neuron progenitor cell part of asexual organism 
                    klf+ sensory neuron progenitor cell part of peripheral nervous system 
Nerve branches that extend from the lateral side of each cephalic ganglia lobe. Each lobe has nine lateral branches which terminate in sensory organs. Evidence suggests they play a role in chemosensation.
Expand lateral branch relations
                    lateral branch is a material entity 
                    lateral branch is a tissue 
                    lateral branch existence overlaps adult hermaphrodite 
                    lateral branch existence overlaps asexual adult 
                    lateral branch existence overlaps juvenile 
                    lateral branch part of cephalic ganglia 
                    lateral branch contained in anterior region of the whole animal 
                    lateral branch contained in head 
                    lateral branch contained in ventral region of the whole animal 
A fragment derived from an amputation parallel to or along any edge, which overlaps the lateral region, dorso-lateral region, ventro-lateral region, antero-lateral margin, lateral margin, ventro-lateral margin, postero-lateral margin, dorso-lateral margin, antero-lateral region, postero-lateral region. [SMR: a fragment that encompasses the side of the animal, not necessarily longituduinal, or parallel to the midline]
Expand lateral fragment relations
                    lateral fragment is a fragment 
                    lateral fragment RO:0001000 lateral side 
A nerve extending laterally from the ventral nerve cord that innervates the submuscular plexus.
Expand lateral nerve relations
                    lateral nerve is a independent continuant 
                    lateral nerve is a tissue 
                    lateral nerve existence overlaps adult hermaphrodite 
                    lateral nerve existence overlaps asexual adult 
                    lateral nerve existence overlaps juvenile 
                    lateral nerve part of asexual organism 
                    lateral nerve part of peripheral nervous system 
The lateral region of the medio-lateral axis of the whole animal.
Expand lateral region of the whole animal relations
                    lateral region of the whole animal part of whole organism 
                    lateral region of the whole animal has component lateral region 
Axis perpendicular to both the anteroposterior and dorsoventral axis that runs from the left side of the animal, through the medial region (center) and out to the right side.
Expand left-right axis of the whole animal relations
                    left-right axis of the whole animal is a continuant 
                    left-right axis of the whole animal part of whole organism 
                    left-right axis of the whole animal has component left-right axis 
spermatocyte undergoing leptotene
Expand leptotene stage spermatocyte relations
                    leptotene stage spermatocyte is a spermatocyte 
                    leptotene stage spermatocyte contains process leptotene 
An amputation performed with a transverse, oblique or longitudinal cut.
Expand linear amputation relations
                    linear amputation is a amputation 
A breach of the epidermis and optionally down into other structures though an insult with a knife or other instrument, such that the movement includes the z direction and one or more of the x y direction.
Expand linear incision relations
                    linear incision is a incision 
An intracellular non-membrane-bounded organelle comprising a matrix of coalesced lipids surrounded by a phospholipid monolayer. May include associated proteins.
Expand lipid droplet relations
                    lipid droplet is a intracellular non-membrane-bounded organelle 
a fragment derived from an amputation parallel to the midline.
Expand longitudinal fragment relations
                    longitudinal fragment is a fragment 
                    longitudinal fragment RO:0001000 longitudinal region 
Body wall muscle fibers arrayed along the anteroposterior axis. Upon regeneration, these muscles are thought to be established from truncated pre-existing fibers.Inner most body wall muscle fibers arrayed along the anteroposterior axis. These fibers are thicker than the outer longitudinal muscle fibers. The pattern of these muscles differs along the dorsoventral axis, with the dorsal arrangement converging at the central zone of the anterior pole. The ventral arrangement is more parallel or may diverge slightly as it approaches the ventral pole.
Expand longitudinal muscle cell relations
                    longitudinal muscle cell is a muscle cell 
                    longitudinal muscle cell part of body wall musculature 
piwi-1+, myoD+, snail-1+ progenitor neoblasts required for specification and creation of longitudinal muscle fibers.
Expand longitudinal muscle progenitor cell relations
                    longitudinal muscle progenitor cell is a muscle progenitor cell 
                    longitudinal muscle progenitor cell is a neoblast 
A region bounded by any sagittal plane though the animal and the left or right side of the animal. NOTE: sagittal plane is an anatomical plane that divides a bilateral body into left and right parts, not necessarily of even size
Expand longitudinal region relations
                    longitudinal region is a anatomical region 
The cavity or channel within a tube or tubular organ such as a blood vessel or the intestine.
Expand lumen relations
                    lumen is a anatomical cavity 
The digestive component of the cell. They are homogenous, dense, membrane bound organelles filled with acid hydrolases which break down polymers.
Expand lysosome relations
                    lysosome is a intracellular membrane-bounded organelle 
A male germ cell is a germ cell that supports male gamete production.
Expand male germ cell relations
                    male germ cell is a germ cell 
Cells coexpressing piwi-1 and nanos that are required for male gonad formation. Primordial germ cells are present in both asexual adults and sexual hermaphrodites. This term may be redundant with spermatogonial stem cell.
Expand male primordial germ cell relations
                    male primordial germ cell is a male germ cell 
                    male primordial germ cell is a material entity 
                    male primordial germ cell is a stem cell 
                    male primordial germ cell existence overlaps adult hermaphrodite 
                    male primordial germ cell existence overlaps asexual adult 
                    male primordial germ cell existence overlaps juvenile 
                    male primordial germ cell contained in anterior region of the whole animal 
                    male primordial germ cell contained in copulatory region 
                    male primordial germ cell contained in dorsal region of the whole animal 
                    male primordial germ cell contained in parapharyngeal region 
                    male primordial germ cell contained in posterior region of the whole animal 
                    male primordial germ cell contained in prepharyngeal region 
                    male primordial germ cell contained in tail 
Zone present along the lateral dorsoventral boundary that sits just underneath the animal, in contact with substrates. It is comprised of bunches of adhesion gland cells whose terminal pores form pore rosettes through the dorsal ventral boundary epidermis.This region of is devoid of rhabdites.
Expand marginal adhesive zone relations
                    marginal adhesive zone is a anatomical compartment 
                    marginal adhesive zone existence overlaps adult hermaphrodite 
                    marginal adhesive zone existence overlaps asexual adult 
                    marginal adhesive zone existence overlaps juvenile 
An independent continuant that is spatially extended whose identity is independent of that of other entities and can be maintained through time.
Expand material entity relations
                    material entity is a independent continuant 
A cell specialized to transduce mechanical stimuli and relay that information centrally in the nervous system.
Expand mechanoreceptor cell relations
                    mechanoreceptor cell is a sensory neuron 
Any neuron that is capable of some detection of mechanical stimulus involved in sensory perception.
Expand mechanosensory neuron relations
                    mechanosensory neuron is a sensory neuron 
                    mechanosensory neuron part of sensory system 
Axis that runs from the center of the body, starting at the anteroposterior axis and out to the lateral (left, right, dorsal or ventral) surface of the animal.
Expand medial-lateral axis of the whole animal relations
                    medial-lateral axis of the whole animal is a continuant 
                    medial-lateral axis of the whole animal part of whole organism 
                    medial-lateral axis of the whole animal has component medial-lateral axis 
Subset of dorsal-ventral muscle cells located in the medial body region.
Expand medial muscle cell relations
                    medial muscle cell is a material entity 
                    medial muscle cell is a muscle cell 
                    medial muscle cell existence overlaps adult hermaphrodite 
                    medial muscle cell existence overlaps asexual adult 
                    medial muscle cell existence overlaps juvenile 
                    medial muscle cell part of parenchymal musculature 
                    medial muscle cell contained in anterior region of the whole animal 
                    medial muscle cell contained in dorsal region of the whole animal 
                    medial muscle cell contained in posterior region of the whole animal 
                    medial muscle cell contained in ventral region of the whole animal 
spermatocyte undergoing meiosis II cell cycle phase
Expand meiosis II stage spermatocyte relations
                    meiosis II stage spermatocyte is a spermatocyte 
                    meiosis II stage spermatocyte contains process meiosis II cell cycle phase 
spermatocyte undergoing meiotic anaphase II
Expand meiotic anaphase II spermatocyte relations
                    meiotic anaphase II spermatocyte is a meiosis II stage spermatocyte 
                    meiotic anaphase II spermatocyte contains process meiotic anaphase II 
spermatocyte undergoing meiotic anaphase I
Expand meiotic anaphase I stage spermatocyte relations
                    meiotic anaphase I stage spermatocyte is a spermatocyte 
                    meiotic anaphase I stage spermatocyte contains process meiotic anaphase I 
spermatocyte undergoing meiotic G1 phase
Expand meiotic G1 phase spermatocyte relations
                    meiotic G1 phase spermatocyte is a spermatocyte 
                    meiotic G1 phase spermatocyte contains process meiotic G1 phase 
spermatocyte undergoing meiotic G2 phase
Expand meiotic G2 phase spermatocyte relations
                    meiotic G2 phase spermatocyte is a spermatocyte 
                    meiotic G2 phase spermatocyte contains process meiotic G2 phase 
A germ cell undergoing meiosis.
Expand meiotic germ cell relations
                    meiotic germ cell is a germ cell 
                    meiotic germ cell is a independent continuant 
                    meiotic germ cell existence overlaps adult hermaphrodite 
                    meiotic germ cell existence overlaps juvenile 
                    meiotic germ cell specific to Smed sexual biotype 
                    meiotic germ cell existence starts during or after juvenile 
spermatocyte undergoing meiotic metaphase I
Expand meiotic metaphase 1 stage spermatocyte relations
                    meiotic metaphase 1 stage spermatocyte is a spermatocyte 
                    meiotic metaphase 1 stage spermatocyte contains process meiotic metaphase I 
spermatocyte undergoing meiotic metaphase II
Expand meiotic metaphase 2 spermatocyte relations
                    meiotic metaphase 2 spermatocyte is a meiosis II stage spermatocyte 
                    meiotic metaphase 2 spermatocyte contains process meiotic metaphase II 
spermatocyte undergoing meiotic prophase II
Expand meiotic prophase II spermatocyte relations
                    meiotic prophase II spermatocyte is a meiosis II stage spermatocyte 
                    meiotic prophase II spermatocyte contains process meiotic prophase II 
spermatocyte undergoing meiotic prophase I
Expand meiotic prophase I spermatocyte relations
                    meiotic prophase I spermatocyte is a spermatocyte 
                    meiotic prophase I spermatocyte contains process meiotic prophase I 
spermatocyte undergoing meiotic S phase
Expand meiotic S phase spermatocyte relations
                    meiotic S phase spermatocyte is a spermatocyte 
                    meiotic S phase spermatocyte contains process meiotic S phase 
spermatocyte undergoing meiotic telophase II
Expand meiotic telophase II spermatocyte relations
                    meiotic telophase II spermatocyte is a meiosis II stage spermatocyte 
                    meiotic telophase II spermatocyte contains process meiotic telophase II 
spermatocyte undergoing meiotic telophase I
Expand meiotic telophase I spermatocyte relations
                    meiotic telophase I spermatocyte is a spermatocyte 
                    meiotic telophase I spermatocyte contains process meiotic telophase I 
pigment granule which is part of the eumelanin
Expand melanin pigment granule relations
                    melanin pigment granule is a anatomical entity 
                    melanin pigment granule is a independent continuant 
A tissue-specific, membrane-bounded cytoplasmic organelle within which melanin pigments are synthesized and stored. Melanosomes are synthesized in melanocyte cells.
Expand melanosome relations
                    melanosome is a anatomical entity 
                    melanosome is a intracellular membrane-bounded organelle 
                    melanosome is a material entity 
                    melanosome existence overlaps adult hermaphrodite 
                    melanosome existence overlaps asexual adult 
                    melanosome existence overlaps juvenile 
                    melanosome existence overlaps Stage 7 
                    melanosome existence overlaps Stage 8 
                    melanosome part of pigment cup cell 
                    melanosome existence starts during or after Stage 7 
                    melanosome contained in anterior region of the whole animal 
                    melanosome contained in dorsal region of the whole animal 
                    melanosome contained in head 
A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
Expand membrane relations
                    membrane is a cellular_component 
Organized structure of distinctive morphology and function, bounded by a single or double lipid bilayer membrane. Includes the nucleus, mitochondria, plastids, vacuoles, and vesicles. Excludes the plasma membrane.
Expand membrane-bounded organelle relations
                    membrane-bounded organelle is a organelle 
Any constituent part of a membrane, a double layer of lipid molecules that encloses all cells, and, in eukaryotes, many organelles; may be a single or double lipid bilayer; also includes associated proteins.
Expand membrane part relations
                    membrane part is a cellular_component 
                    membrane part part of membrane 
germ cell cyst undergoing mitotic metaphase
Expand metaphase germ cell cyst relations
                    metaphase germ cell cyst is a germ cell cyst 
                    metaphase germ cell cyst contains process mitotic metaphase 
neoblast undergoing mitotic metaphase
Expand metaphase neoblast relations
                    metaphase neoblast is a neoblast 
                    metaphase neoblast contains process mitotic metaphase 
oogonial cell undergoing mitotic metaphase
Expand metaphase oogonial cell relations
                    metaphase oogonial cell is a oogonial cell 
                    metaphase oogonial cell contains process mitotic metaphase 
oogonial stem cell undergoing mitotic metaphase
Expand metaphase oogonial stem cell relations
                    metaphase oogonial stem cell is a oogonial stem cell 
                    metaphase oogonial stem cell contains process mitotic metaphase 
spermatogonium undergoing mitotic metaphase
Expand metaphase spermatogonia relations
                    metaphase spermatogonia is a spermatogonium 
                    metaphase spermatogonia contains process mitotic metaphase 
spermatogonial stem cell undergoing mitotic metaphase
Expand metaphase spermatogonial stem cell relations
                    metaphase spermatogonial stem cell is a spermatogonial stem cell 
                    metaphase spermatogonial stem cell contains process mitotic metaphase 
Thin cylindrical membrane-covered projections on the surface of an animal cell containing a core bundle of actin filaments.
Expand microvillus relations
                    microvillus is a actin-based cell projection 
The median line/ plane of bilateral symmetry along the anteroposterior axis.
Expand midline relations
                    midline is a anatomical region 
                    midline is a independent continuant 
                    midline existence overlaps adult hermaphrodite 
                    midline existence overlaps asexual adult 
                    midline existence overlaps juvenile 
                    midline existence overlaps Stage 7 
                    midline existence overlaps Stage 8 
A spherical to rod shaped organelle that generates the majority of a cell's supply of ATP via cellular respiration. Mitochondria have their own genome and consist of outer and inner membranes, the latter folds inward to form cristae. This folding increases the surface area of the membrane and thus increases the space available to produce ATP. The inner and outer membranes are separated by an intermembrane space, and the inner membrane encloses the matrix.
Expand mitochondrion relations
                    mitochondrion is a intracellular membrane-bounded organelle 
An efferent neuron that passes from the central nervous system or a ganglion toward or to a muscle and conducts an impulse that causes or inhibits movement.
Expand motor neuron relations
                    motor neuron is a efferent neuron 
The sole point of entry and exit for the Triclad planarian flatworm gut. The mouth is connected to the pharyngeal pouch to allow for exit and re-entry of the pharynx on the ventral side of the animal. The mouth contains several cell types, including epithelial cells, muscle, and secretory cells.
Expand mouth relations
                    mouth is a material entity 
                    mouth is a organ 
                    mouth existence overlaps adult hermaphrodite 
                    mouth existence overlaps asexual adult 
                    mouth existence overlaps juvenile 
                    mouth existence overlaps Stage 6 
                    mouth existence overlaps Stage 7 
                    mouth existence overlaps Stage 8 
                    mouth part of digestive system 
                    mouth existence starts during or after Stage 6 
                    mouth contained in parapharyngeal region 
                    mouth contained in posterior region of the whole animal 
                    mouth contained in ventral region of the whole animal 
A secreted, mucin-rich extracellular substance coating the epidermal surface of the animal implicated in gliding locomotion, substrate adhesion, innate immunity and predator avoidance.
Expand mucus relations
                    mucus is a acellular anatomical structure 
                    mucus is a material entity 
                    mucus existence overlaps adult hermaphrodite 
                    mucus existence overlaps asexual adult 
                    mucus existence overlaps juvenile 
                    mucus part of secretory system 
                    mucus produced by secretory cell 
An anatomical structure that has more than one cell as a part.
Expand multicellular anatomical structure relations
                    multicellular anatomical structure is a anatomical structure 
Neuron with an axon and two or more dendrites.
Expand multipolar neuron relations
                    multipolar neuron is a neuron 
                    multipolar neuron part of central nervous system 
                    multipolar neuron part of subepidermal nerve plexus 
A mature contractile cell, commonly known as a myocyte. This cell has as part of its cytoplasm myofibrils organized in various patterns.
Expand muscle cell relations
                    muscle cell is a electrically responsive cell 
Progenitor neoblasts implicated in the maintenance and regeneration of muscle fibers.
Expand muscle progenitor cell relations
                    muscle progenitor cell is a progenitor cell 
                    muscle progenitor cell part of musculature system 
Total musculature of the planarian body.
Expand musculature system relations
                    musculature system is a anatomical system 
                    musculature system part of asexual organism 
                    musculature system part of sexual organism 
A heterogeneous population of pluripotent, somatic adult stem cells and lineage primed progenitors that are required for maintenance and regeneration of all cell types in planaria, including the germline.
Expand neoblast relations
                    neoblast is a anatomical entity 
                    neoblast is a material entity 
                    neoblast is a progenitor cell 
                    neoblast is a stem cell 
                    neoblast existence overlaps adult hermaphrodite 
                    neoblast existence overlaps asexual adult 
                    neoblast existence overlaps juvenile 
                    neoblast existence overlaps Stage 5 
                    neoblast existence overlaps Stage 6 
                    neoblast existence overlaps Stage 7 
                    neoblast existence overlaps Stage 8 
                    neoblast existence starts during or after Stage 5 
                    neoblast contained in anterior region of the whole animal 
                    neoblast contained in copulatory region 
                    neoblast contained in dorsal region of the whole animal 
                    neoblast contained in head 
                    neoblast contained in parapharyngeal region 
                    neoblast contained in posterior region of the whole animal 
                    neoblast contained in prepharyngeal region 
                    neoblast contained in tail 
                    neoblast contained in ventral region of the whole animal 
                    neoblast develops from blastomere 
The external opening and terminus of a protonephridium made by a terminal cell.
Expand nephridiopore relations
                    nephridiopore is a anatomical entity 
                    nephridiopore is a pore 
                    nephridiopore part of flame cell 
An enclosed, cable-like bundle of axons in the peripheral nervous system originating in a nerve root in the central nervous system (or a condensed nervous structure) connecting with peripheral structures.
Expand nerve relations
                    nerve is a tissue 
                    nerve part of central nervous system 
                    nerve part of peripheral nervous system 
Anatomical junction where subdivisions of two or more neural trees interconnect with one another to form a network through which nerve fibers of the constituent nerve trees become regrouped; together with other nerve plexuses, nerves and ganglia, it constitutes the peripheral nervous system. Examples: cervical nerve plexus, brachial nerve plexus, sacral nerve plexus[FMA].
Expand nerve plexus relations
                    nerve plexus is a tissue 
                    nerve plexus part of peripheral nervous system 
The nervous system is an organ system containing predominantly neuron and glial cells. In bilaterally symmetrical organisms, it is arranged in a network of tree-like structures connected to a central body. The main functions of the nervous system are to regulate and control body functions, and to receive sensory input, process this information, and generate behavior [CUMBO].
Expand nervous system relations
                    nervous system is a anatomical system 
                    nervous system part of sexual organism 
Neoblasts and their differentiating daughters implicated in maintenance and regeneration of different tissues in the nervous system.
Expand neural progenitor cell relations
                    neural progenitor cell is a anatomical entity 
                    neural progenitor cell is a progenitor cell 
                    neural progenitor cell develops into nervous system 
Cell appendage of the neuron which includes the axon and the dendrite.
Expand neurite relations
                    neurite is a cell projection 
                    neurite is a continuant 
                    neurite specific to neuron 
                    neurite part of neuron 
The basic cellular unit of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the nervous system.
Expand neuron relations
                    neuron is a electrically signaling cell 
Cells that are in close proximity to neurons.
Expand neuron associated cell (sensu Nematoda and Protostomia) relations
                    neuron associated cell (sensu Nematoda and Protostomia) is a terminally differentiated cell 
A fasciculated bundle of neuron projections (GO:0043005), largely or completely lacking synapses.
Expand neuron projection bundle relations
                    neuron projection bundle is a axon tract 
                    neuron projection bundle part of central nervous system 
                    neuron projection bundle part of peripheral nervous system 
A neuron that produces and releases neuropeptides at chemical synapses.
Expand neuropeptidergic neuron relations
                    neuropeptidergic neuron is a neuron 
                    neuropeptidergic neuron part of central nervous system 
                    neuropeptidergic neuron part of peripheral nervous system 
A cluster of neurites that is part of a nervous system and forms a network of dendrites and axons where synapses are present and in which neuronal somata do not occur.
Expand neuropil relations
                    neuropil is a material entity 
                    neuropil is a tissue 
                    neuropil existence overlaps adult hermaphrodite 
                    neuropil existence overlaps asexual adult 
                    neuropil existence overlaps juvenile 
                    neuropil part of cephalic ganglia 
                    neuropil contained in anterior region of the whole animal 
                    neuropil contained in head 
                    neuropil contained in ventral region of the whole animal 
Neuronal cells which synthesize, store and release neurohormones.
Expand neurosecretory neuron relations
                    neurosecretory neuron is a neuron 
                    neurosecretory neuron is a secretory cell 
                    neurosecretory neuron part of central nervous system 
                    neurosecretory neuron part of peripheral nervous system 
Differentiating, immature epidermal cells lacking cilia.
Expand non-ciliated epidermis relations
                    non-ciliated epidermis is a epidermis 
An epithelial cell lacking cilia.
Expand non ciliated epithelial cell relations
                    non ciliated epithelial cell is a epithelial cell 
Organized structure of distinctive morphology and function, not bounded by a lipid bilayer membrane. Includes ribosomes, the cytoskeleton and chromosomes.
Expand non-membrane-bounded organelle relations
                    non-membrane-bounded organelle is a organelle 
The double lipid bilayer enclosing the nucleus and separating its contents from the rest of the cytoplasm; includes the intermembrane space, a gap of width 20-40 nm (also called the perinuclear space).
Expand nuclear envelope relations
                    nuclear envelope is a membrane 
The inner, i.e. lumen-facing, lipid bilayer of the nuclear envelope.
Expand nuclear inner membrane relations
                    nuclear inner membrane is a membrane part 
                    nuclear inner membrane part of nuclear envelope 
The volume enclosed by the nuclear inner membrane.
Expand nuclear lumen relations
                    nuclear lumen is a nuclear part 
The outer, i.e. cytoplasm-facing, lipid bilayer of the nuclear envelope; continuous with the endoplasmic reticulum of the cell and sometimes studded with ribosomes.
Expand nuclear outer membrane relations
                    nuclear outer membrane is a membrane part 
                    nuclear outer membrane part of nuclear envelope 
Any constituent part of the nucleus, a membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated.
Expand nuclear part relations
                    nuclear part is a intracellular part 
                    nuclear part part of nucleus 
The portion of the nuclear lumen proximal to the inner nuclear membrane.
Expand nuclear periphery relations
                    nuclear periphery is a nuclear part 
Any of the numerous similar discrete openings in the nuclear envelope of a eukaryotic cell, where the inner and outer nuclear membranes are joined.
Expand nuclear pore relations
                    nuclear pore is a nuclear part 
                    nuclear pore is a pore 
A small, dense body one or more of which are present in the nucleus of eukaryotic cells. It is rich in RNA and protein, is not bounded by a limiting membrane, and is not seen during mitosis. Its prime function is the transcription of the nucleolar DNA into 45S ribosomal-precursor RNA, the processing of this RNA into 5.8S, 18S, and 28S components of ribosomal RNA, and the association of these components with 5S RNA and proteins synthesized outside the nucleolus. This association results in the formation of ribonucleoprotein precursors; these pass into the cytoplasm and mature into the 40S and 60S subunits of the ribosome.
Expand nucleolus relations
                    nucleolus is a nuclear part 
A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
Expand nucleus relations
                    nucleus is a intracellular membrane-bounded organelle 
A population of piwi-2+, ston-2+, elav-2+, ptprd-9+ and msi-1+ progenitors that give rise to one or more neuronal (pc-2+, synapsin+) lineages.
Expand nu neoblast relations
                    nu neoblast is a neoblast 
                    nu neoblast is a neural progenitor cell 
                    nu neoblast part of nervous system 
The reason for which a term has been deprecated. The allowed values come from an enumerated list of predefined terms. See the specification of these instances for more detailed definitions of each enumerated value.
Expand obsolescence reason specification relations
                    obsolescence reason specification is a data about an ontology part 
Expand obsolete cross-fertilization relations
                    obsolete cross-fertilization is a obsolete Schmidtea mediterranea developmental term 
Expand obsolete direct development relations
                    obsolete direct development is a obsolete Schmidtea mediterranea developmental term 
Expand obsolete dispersed cleavage relations
                    obsolete dispersed cleavage is a obsolete Schmidtea mediterranea developmental term 
Expand obsolete embryonic cleavage relations
                    obsolete embryonic cleavage is a obsolete Schmidtea mediterranea developmental term 
                    obsolete embryonic cleavage existence ends at point Stage 2 
                    obsolete embryonic cleavage existence starts at point Stage 1 
                    obsolete embryonic cleavage existence overlaps Stage 1 
                    obsolete embryonic cleavage existence overlaps Stage 2 
Expand obsolete gametogenesis relations
                    obsolete gametogenesis is a obsolete Schmidtea mediterranea developmental term 
                    obsolete gametogenesis existence starts at point juvenile 
                    obsolete gametogenesis existence overlaps adult hermaphrodite 
                    obsolete gametogenesis existence overlaps juvenile 
Expand obsolete oviparity relations
                    obsolete oviparity is a obsolete Schmidtea mediterranea developmental term 
Expand obsolete protosphere relations
                    obsolete protosphere is a obsolete Schmidtea mediterranea developmental term 
                    obsolete protosphere produced by obsolete sphere formation 
                    obsolete protosphere existence ends at point Stage 2 
                    obsolete protosphere existence starts at point Stage 2 
                    obsolete protosphere existence overlaps Stage 2 
Expand obsolete sphere formation relations
                    obsolete sphere formation is a obsolete Schmidtea mediterranea developmental term 
                    obsolete sphere formation existence ends at point Stage 2 
                    obsolete sphere formation existence starts at point Stage 2 
                    obsolete sphere formation existence overlaps Stage 2 
Expand obsolete tissue morphogenesis relations
                    obsolete tissue morphogenesis is a obsolete Schmidtea mediterranea developmental term 
                    obsolete tissue morphogenesis existence starts at point Stage 6 
                    obsolete tissue morphogenesis existence overlaps Stage 6 
                    obsolete tissue morphogenesis existence overlaps Stage 7 
                    obsolete tissue morphogenesis existence overlaps Stage 8 
An entity that has temporal parts and that happens, unfolds or develops through time.
Expand occurrent relations
                    occurrent is a entity 
                    occurrent part of occurrent 
b occurs_in c =def b is a process and c is a material entity or immaterial entity& there exists a spatiotemporal region r and b occupies_spatiotemporal_region r.& forall(t) if b exists_at t then c exists_at t & there exist spatial regions s and s where & b spatially_projects_onto s at t& c is occupies_spatial_region s at t& s is a proper_continuant_part_of s at t
Neurons that express the biogenic amine octopamine.
Expand octopaminergic neuron relations
                    octopaminergic neuron is a independent continuant 
                    octopaminergic neuron is a neurosecretory neuron 
                    octopaminergic neuron existence overlaps adult hermaphrodite 
                    octopaminergic neuron existence overlaps asexual adult 
                    octopaminergic neuron existence overlaps juvenile 
Parenchymal cells that synthesize and contain brown ommonchrome pigment.
Expand ommochrome pigment cell relations
                    ommochrome pigment cell is a material entity 
                    ommochrome pigment cell is a pigment cell 
                    ommochrome pigment cell existence overlaps adult hermaphrodite 
                    ommochrome pigment cell existence overlaps asexual adult 
                    ommochrome pigment cell existence overlaps juvenile 
                    ommochrome pigment cell contained in anterior region of the whole animal 
                    ommochrome pigment cell contained in copulatory region 
                    ommochrome pigment cell contained in dorsal region of the whole animal 
                    ommochrome pigment cell contained in head 
                    ommochrome pigment cell contained in parapharyngeal region 
                    ommochrome pigment cell contained in posterior region of the whole animal 
                    ommochrome pigment cell contained in prepharyngeal region 
                    ommochrome pigment cell contained in tail 
                    ommochrome pigment cell contained in ventral region of the whole animal 
pigment granule which is part of the ommochrome pigment cell
A female germ cell that has entered meiosis.
Expand oocyte relations
                    oocyte is a anatomical entity 
                    oocyte is a female germ cell 
                    oocyte is a gamete 
                    oocyte part of ovary 
                    oocyte contained in anterior region of the whole animal 
                    oocyte contained in prepharyngeal region 
                    oocyte contained in ventral region of the whole animal 
                    oocyte develops from oogonial cell 
                    oocyte produced by ovary 
An undifferentiated germ cell that proliferates rapidly and gives rise to oocytes.
Expand oogonial cell relations
                    oogonial cell is a anatomical entity 
                    oogonial cell is a female germ cell 
                    oogonial cell is a material entity 
                    oogonial cell is a progenitor cell 
                    oogonial cell existence overlaps adult hermaphrodite 
                    oogonial cell existence overlaps juvenile 
                    oogonial cell specific to Smed sexual biotype 
                    oogonial cell part of ovary 
                    oogonial cell existence starts during or after juvenile 
                    oogonial cell contained in anterior region of the whole animal 
                    oogonial cell contained in prepharyngeal region 
                    oogonial cell contained in ventral region of the whole animal 
                    oogonial cell develops from oogonial stem cell 
A piwi-1+, nanos+ cell residing in the ovary that self-renews and give rise to oogonial cells that differentiate into oocytes.
Expand oogonial stem cell relations
                    oogonial stem cell is a anatomical entity 
                    oogonial stem cell is a female germ cell 
                    oogonial stem cell is a material entity 
                    oogonial stem cell is a stem cell 
                    oogonial stem cell existence overlaps adult hermaphrodite 
                    oogonial stem cell existence overlaps juvenile 
                    oogonial stem cell part of ovary 
                    oogonial stem cell existence starts during or after juvenile 
                    oogonial stem cell contained in anterior region of the whole animal 
                    oogonial stem cell contained in prepharyngeal region 
                    oogonial stem cell contained in ventral region of the whole animal 
                    oogonial stem cell develops from neoblast 
A decussation of the diencephalon where the fibers of the optic nerve cross
Expand optic chiasm relations
                    optic chiasm is a material entity 
                    optic chiasm is a neuron projection bundle 
                    optic chiasm existence overlaps adult hermaphrodite 
                    optic chiasm existence overlaps asexual adult 
                    optic chiasm existence overlaps juvenile 
                    optic chiasm part of visual system 
                    optic chiasm contained in anterior region of the whole animal 
                    optic chiasm contained in head 
A portion of the eye containing pigment cells and dendritic projections from photoreceptor neurons.
Expand optic cup relations
                    optic cup is a anatomical entity 
                    optic cup is a material entity 
                    optic cup is a tissue 
                    optic cup existence overlaps adult hermaphrodite 
                    optic cup existence overlaps asexual adult 
                    optic cup existence overlaps juvenile 
                    optic cup existence overlaps Stage 7 
                    optic cup existence overlaps Stage 8 
                    optic cup part of eye 
                    optic cup existence starts during or after Stage 7 
                    optic cup contained in anterior region of the whole animal 
                    optic cup contained in dorsal region of the whole animal 
                    optic cup contained in head 
A progenitor cell that gives rise to optic cup cells of the eye.
Expand optic cup progenitor cell relations
                    optic cup progenitor cell is a anatomical entity 
                    optic cup progenitor cell is a progenitor cell 
                    optic cup progenitor cell develops into optic cup 
A neuron projection bundle that connects the retina or its analog in the eye with the brain. This includes the vertebrate optic nerve (not truly a nerve) as well as analogous structures such as the Bolwig nerve in Drosophila.
Expand optic nerve relations
                    optic nerve is a material entity 
                    optic nerve is a nerve 
                    optic nerve existence overlaps adult hermaphrodite 
                    optic nerve existence overlaps asexual adult 
                    optic nerve existence overlaps juvenile 
                    optic nerve part of visual system 
                    optic nerve contained in anterior region of the whole animal 
                    optic nerve contained in dorsal region of the whole animal 
                    optic nerve contained in head 
Axis that runs from the oral pole and to the aboral pole of the spherical embryo (Stage 3 through early Stage 6). The oral pole is centered around the embryonic pharynx; the aboral pole is located opposite the embryonic pharynx.
Expand oral-aboral axis of the embryo relations
                    oral-aboral axis of the embryo is a continuant 
                    oral-aboral axis of the embryo part of embryo 
                    oral-aboral axis of the embryo has component oral-aboral axis 
Stage 3-5 embryo hemisphere centered around the embryonic pharynx.
Expand oral hemisphere relations
                    oral hemisphere is a embryonic subdivision 
                    oral hemisphere is a independent continuant 
                    oral hemisphere existence overlaps Stage 3 
                    oral hemisphere existence overlaps Stage 4 
                    oral hemisphere existence overlaps Stage 5 
                    oral hemisphere existence overlaps Stage 6 
                    oral hemisphere existence starts during or after Stage 3 
                    oral hemisphere existence ends during or before Stage 6 
                    oral hemisphere existence ends during or before Stage 6 
The orifice that connects the mouth to the exterior of the body.
Expand oral opening relations
                    oral opening is a anatomical cavity 
                    oral opening is a anatomical entity 
                    oral opening is a material entity 
                    oral opening existence overlaps adult hermaphrodite 
                    oral opening existence overlaps asexual adult 
                    oral opening existence overlaps juvenile 
                    oral opening existence overlaps Stage 3 
                    oral opening existence overlaps Stage 4 
                    oral opening existence overlaps Stage 5 
                    oral opening existence overlaps Stage 6 
                    oral opening existence overlaps Stage 7 
                    oral opening existence overlaps Stage 8 
                    oral opening part of embryonic pharynx 
                    oral opening part of mouth 
                    oral opening existence starts during or after Stage 3 
                    oral opening contained in oral hemisphere 
                    oral opening contained in parapharyngeal region 
Anatomical structure that performs a specific function or group of functions.
Expand organ relations
                    organ is a multicellular anatomical structure 
Organized structure of distinctive morphology and function. Includes the nucleus, mitochondria, plastids, vacuoles, vesicles, ribosomes and the cytoskeleton, and prokaryotic structures such as anammoxosomes and pirellulosomes. Excludes the plasma membrane.
Expand organelle relations
                    organelle is a cellular_component 
A membrane that is one of the two lipid bilayers of an organelle envelope or the outermost membrane of single membrane bound organelle.
Expand organelle membrane relations
                    organelle membrane is a membrane 
                    organelle membrane part of membrane-bounded organelle 
A stage at which the ectoderm, endoderm, and mesoderm develop into the internal organs of the organism.
Expand organogenesis relations
                    organogenesis is a obsolete Schmidtea mediterranea developmental term 
                    organogenesis existence starts at point Stage 5 
                    organogenesis existence overlaps juvenile 
                    organogenesis existence overlaps Stage 5 
                    organogenesis existence overlaps Stage 6 
                    organogenesis existence overlaps Stage 7 
                    organogenesis existence overlaps Stage 8 
Body wall muscle fibers arrayed along the anteroposterior axis. Upon regeneration, these muscles are thought to be established from truncated pre-existing fibers.
Expand outer longitudinal muscle cell relations
                    outer longitudinal muscle cell is a anatomical entity 
                    outer longitudinal muscle cell is a longitudinal muscle cell 
                    outer longitudinal muscle cell is a material entity 
                    outer longitudinal muscle cell existence overlaps adult hermaphrodite 
                    outer longitudinal muscle cell existence overlaps asexual adult 
                    outer longitudinal muscle cell existence overlaps juvenile 
                    outer longitudinal muscle cell contained in anterior region of the whole animal 
                    outer longitudinal muscle cell contained in copulatory region 
                    outer longitudinal muscle cell contained in dorsal region of the whole animal 
                    outer longitudinal muscle cell contained in head 
                    outer longitudinal muscle cell contained in parapharyngeal region 
                    outer longitudinal muscle cell contained in posterior region of the whole animal 
                    outer longitudinal muscle cell contained in prepharyngeal region 
                    outer longitudinal muscle cell contained in tail 
                    outer longitudinal muscle cell contained in ventral region of the whole animal 
                    outer longitudinal muscle cell develops from longitudinal muscle progenitor cell 
ophis+ somatic cells (gh4-, nanos-) in the ovary that may provide trophic support to female germline stem cells and differentiating oogonia.
Expand ovarian somatic gonadal cell relations
                    ovarian somatic gonadal cell is a material entity 
                    ovarian somatic gonadal cell is a terminally differentiated cell 
                    ovarian somatic gonadal cell existence overlaps adult hermaphrodite 
                    ovarian somatic gonadal cell existence overlaps juvenile 
                    ovarian somatic gonadal cell specific to Smed sexual biotype 
                    ovarian somatic gonadal cell part of ovary 
                    ovarian somatic gonadal cell existence starts during or after juvenile 
                    ovarian somatic gonadal cell contained in anterior region of the whole animal 
                    ovarian somatic gonadal cell contained in prepharyngeal region 
                    ovarian somatic gonadal cell contained in ventral region of the whole animal 
A gonad containing female germline stem cells which fuel oocyte production. Two ovaries are located ventally, underneath the body wall musculature, immediately posterior to the cephalic ganglia (brain) and adjacent to the ventral nerve cords. The neoblast compartment, including piwi-1+, nanos+ primordial germ cells, fuel formation of the ovaries during juvenile development.
Expand ovary relations
                    ovary is a gonad 
                    ovary is a material entity 
                    ovary contained in anterior region of the whole animal 
                    ovary contained in prepharyngeal region 
                    ovary contained in ventral region of the whole animal 
lumen which is part of the ovary
Expand ovary lumen relations
                    ovary lumen is a independent continuant 
                    ovary lumen is a lumen 
                    ovary lumen part of ovary 
Nerve plexus surrounding the ovary.
Expand ovary nerve plexus relations
                    ovary nerve plexus is a material entity 
                    ovary nerve plexus is a nerve plexus 
                    ovary nerve plexus existence overlaps adult hermaphrodite 
                    ovary nerve plexus existence overlaps juvenile 
                    ovary nerve plexus specific to Smed sexual biotype 
                    ovary nerve plexus part of reproductive system 
                    ovary nerve plexus existence starts during or after juvenile 
                    ovary nerve plexus contained in anterior region of the whole animal 
                    ovary nerve plexus contained in prepharyngeal region 
                    ovary nerve plexus contained in ventral region of the whole animal 
This primordium develops into ovary
Expand ovary primordium relations
                    ovary primordium is a anatomical entity 
                    ovary primordium is a gonad primoridium 
                    ovary primordium develops into ovary 
Ciliated tubes adjacent to the ventral nerve cords, adjoining the tuba and the bursal canal, that transport fertilized oocytes to the genital atrium.
Expand oviduct relations
                    oviduct is a material entity 
                    oviduct is a reproductive organ 
                    oviduct contained in anterior region of the whole animal 
                    oviduct contained in copulatory region 
                    oviduct contained in parapharyngeal region 
                    oviduct contained in posterior region of the whole animal 
                    oviduct contained in prepharyngeal region 
                    oviduct contained in ventral region of the whole animal 
Ciliated epithelial cells that assemble into the oviduct.
Expand oviduct epithelial cell relations
                    oviduct epithelial cell is a ciliated epithelial cell 
                    oviduct epithelial cell is a material entity 
                    oviduct epithelial cell existence overlaps adult hermaphrodite 
                    oviduct epithelial cell existence overlaps juvenile 
                    oviduct epithelial cell specific to Smed sexual biotype 
                    oviduct epithelial cell part of oviduct epithelium 
                    oviduct epithelial cell existence starts during or after juvenile 
                    oviduct epithelial cell contained in anterior region of the whole animal 
                    oviduct epithelial cell contained in copulatory region 
                    oviduct epithelial cell contained in parapharyngeal region 
                    oviduct epithelial cell contained in posterior region of the whole animal 
                    oviduct epithelial cell contained in prepharyngeal region 
                    oviduct epithelial cell contained in ventral region of the whole animal 
Ciliated epithelium lining the oviduct.
Expand oviduct epithelium relations
                    oviduct epithelium is a ciliated epithelium 
                    oviduct epithelium is a material entity 
                    oviduct epithelium existence overlaps adult hermaphrodite 
                    oviduct epithelium existence overlaps juvenile 
                    oviduct epithelium specific to Smed sexual biotype 
                    oviduct epithelium part of oviduct 
                    oviduct epithelium existence starts during or after juvenile 
                    oviduct epithelium contained in anterior region of the whole animal 
                    oviduct epithelium contained in copulatory region 
                    oviduct epithelium contained in parapharyngeal region 
                    oviduct epithelium contained in posterior region of the whole animal 
                    oviduct epithelium contained in prepharyngeal region 
                    oviduct epithelium contained in ventral region of the whole animal 
Anatomical space enclosed by the oviduct epithelium.
Expand oviduct lumen relations
                    oviduct lumen is a lumen 
                    oviduct lumen is a material entity 
                    oviduct lumen existence overlaps adult hermaphrodite 
                    oviduct lumen existence overlaps juvenile 
                    oviduct lumen specific to Smed sexual biotype 
                    oviduct lumen part of oviduct 
                    oviduct lumen existence starts during or after juvenile 
                    oviduct lumen contained in anterior region of the whole animal 
                    oviduct lumen contained in copulatory region 
                    oviduct lumen contained in parapharyngeal region 
                    oviduct lumen contained in p