| Name: | posterior crista |
|---|---|
| Synonyms: | caudal crista, pc, posterior crista ampullaris, posterior cristae, posterior semicircular canal sensory patch, posterior semicircular canal sensory patches |
| Definition: | Patch of thickened, pseudostratified epithelium that is associated with the posterior semicircular canal. It consists of regular arrays of sensory hair cells interspersed with supporting cells. The posterior crista has its own characteristic shape and polarity pattern. (See Anatomical Atlas entry for sensory patches of the ear by T. Whitfield.) |
| Ontology: | Anatomy Ontology [ZFA:0000566] |
| Name: | aplastic |
|---|---|
| Synonyms: | aplasia, undeveloped |
| Definition: | Absence of an organ, tissue or cell due to failure to develop from a primordium or precursor cell. |
| Ontology: | Phenotypic Quality Ontology [PATO:0001483] |