| 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: | blastema |
|---|---|
| Synonyms: | regeneration blastema |
| Definition: | A regenerating tissue composed of a proliferative mass of undifferentiated progenitor cells from which new differentiated structures arise. |
| Ontology: | Anatomy Ontology [ZFA:0001270] |