| Name: | atrioventricular valve |
|---|---|
| Synonyms: | |
| Definition: | The atrioventricular valve has four distinct leaflets oriented anterior, posterior, left, and right of the atrioventricular orifice. |
| Ontology: | Anatomy Ontology [ZFA:0005064] |
| 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] |