| 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: | Merkel cell |
|---|---|
| Synonyms: | Merkel cells |
| Definition: | A modified epidermal cell located in the stratum basale. They are found mostly in areas where sensory perception is acute. Merkel cells are closely associated with an expanded terminal bulb of an afferent myelinated nerve fiber. |
| Ontology: | Anatomy Ontology [ZFA:0009146] |