Name: | hindbrain |
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Synonyms: | rhombencephalon |
Definition: | The most posterior of the three principal regions of the brain. In mammals and birds the hindbrain is divided into a rostral metencephalon and a caudal myelencephalon. In zebrafish, with the exception of the cerebellum, the ventral remainder of the metencephalon can be separated only arbitrarily from the more caudal myelencephalic portion of the medulla oblongata and thus these are not distinguished here. From Neuroanatomy of the Zebrafish Brain. |
Ontology: | Anatomy Ontology [ZFA:0000029] |
Name: | ependymal cell |
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Synonyms: | ependymocyte |
Definition: | A neurectoderm derived cell that lines the neural lumen. |
Ontology: | Anatomy Ontology [ZFA:0009033] |
Name: | lacks parts or has fewer parts of type |
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Synonyms: | loss of |
Definition: | The bearer of this quality has_part < n of the indicated entity type, where n is the normal amount for a comparable organism. Note that the bearer of the quality is the whole, not the part. Formally: If a bearer entity e has fewer parts of type X at time t, then the number of instances x of X at t such that x part_of e is < n, where n is either the normal number for comparable entities, or n is stated explicitly. This case includes the limit case, where the bearer lacks all parts of the specified type. |
Ontology: | Phenotypic Quality Ontology [PATO:0001999] |
Name: | motile cilium |
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Synonyms: | microtubule-based flagellum, motile cilia, motile primary cilia, motile primary cilium, motile secondary cilium, nodal cilium |
Definition: | A cilium which may have a variable arrangement of axonemal microtubules and also contains molecular motors. It may beat with a whip-like pattern that promotes cell motility or transport of fluids and other cells across a cell surface, such as on epithelial cells that line the lumenal ducts of various tissues; or they may display a distinct twirling motion that directs fluid flow asymmetrically across the cellular surface to affect asymmetric body plan organization. Motile cilia can be found in single as well as multiple copies per cell. |
Ontology: | GO: Cellular Component [GO:0031514] QuickGO AmiGO |