| Name: | caudal fin |
|---|---|
| Synonyms: | tail, tail fin |
| Definition: | Fin that is the most posterior median fin. It is composed of a complex of three modified centra and modified neural and hemal arches and spines. |
| Ontology: | Anatomy Ontology [ZFA:0001058] |
| Name: | vascular plexus |
|---|---|
| Synonyms: | |
| Definition: | Nonhierarchical network of interconnected vessels. May be the primitive state of a mature vascular structure. |
| Ontology: | Anatomy Ontology [ZFA:0005931] |