Term: caudal fin proliferative region
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: proliferative region
Synonyms: cell cycle, cell division, proliferation
Definition: Anatomical cluster which consists of rapidly dividing cells.
Ontology: Anatomy Ontology [ZFA:0000098]