| Name: | gill |
|---|---|
| Synonyms: | gills |
| Definition: | Compound organ that consists of gill filaments, gill lamellae, gill rakers and pharyngeal arches 3-7. The gills are responsible for primary gas exchange between the blood and the surrounding water. |
| Ontology: | Anatomy Ontology [ZFA:0000354] |
| Name: | epithelium |
|---|---|
| Synonyms: | |
| Definition: | Portion of tissue, that consists of one or more layers of epithelial cells connected to each other by cell junctions and which is underlain by a basal lamina. |
| Ontology: | Anatomy Ontology [ZFA:0001486] |