| Name: | pharyngeal arch 6 skeleton |
|---|---|
| Synonyms: | branchial arch 4 skeleton, gill arch 4 skeleton, visceral arch 6 skeleton |
| Definition: | Anatomical cluster made up of skeletal and cartilaginous elements of the sixth pharyngeal arch, also called fourth gill or branchial arch. |
| Ontology: | Anatomy Ontology [ZFA:0001230] |
| 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] |