| Name: | proctodeum |
|---|---|
| Synonyms: | anus |
| Definition: | An inward fold on the surface of the embryonic ectoderm that develops into part of the anal passage. |
| Ontology: | Anatomy Ontology [ZFA:0000066] |
| Name: | atretic |
|---|---|
| Synonyms: | atresia |
| Definition: | A morphological quality inhering in a bearer by virtue of the bearer's absence or closure of a normal body orifice or tubular passage. |
| Ontology: | Phenotypic Quality Ontology [PATO:0001819] |