Name: | otic vesicle |
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Synonyms: | otic capsule, otocyst, ov |
Definition: | Epithelial sac present beside the fifth rhombomere; forms the semicircular canals dorsally and the otolith organs ventrally, and houses the acoustico-vestibular sensory epithelia (maculae) of hair cells. (Also see Anatomical Atlas entry for ear by T. Whitfield.) |
Ontology: | Anatomy Ontology [ZFA:0000051] |
Name: | lacks all parts of type |
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Synonyms: | lacks all physical parts of type |
Definition: | A quality of physical entities inhering in a bearer by virtue of the bearer's lacking a physical part as specified by the additional entity. |
Ontology: | Phenotypic Quality Ontology [PATO:0002000] |
Name: | otolith |
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Synonyms: | immature otolith, immature otoliths, statolith |
Definition: | Portion of organism substance composed of calcium carbonate located in the otolith organ and positioned over a sensory macula; two form in each vesicle during the late segmentation period. (Also see Anatomical Atlas entry for otolith by T. Whitfield.) |
Ontology: | Anatomy Ontology [ZFA:0001617] |