| Name: | posterior semicircular canal |
|---|---|
| Synonyms: | caudal vertical semicircular canal, posterior semicircular canals, posterior semicircular duct |
| Definition: | One of three fluid-filled semicircular tubes, arranged orthogonally to each other in each ear. The posterior semicircular canal is associated with the posterior crista. (See Anatomical Atlas entry for semicircular canals by T. Whitfield.) |
| Ontology: | Anatomy Ontology [ZFA:0000262] |
| 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] |