| Name: | atrium |
|---|---|
| Synonyms: | |
| Definition: | Cavitated compound organ that receives inflow of deoxygenated blood and delivers it to a muscular cardiac ventricle. Valves are present to direct flow. There are only two chambers present in the fish heart. |
| Ontology: | Anatomy Ontology [ZFA:0000471] |
| Name: | cell |
|---|---|
| Synonyms: | cells |
| Definition: | Anatomical structure that has as its parts a maximally connected cell compartment surrounded by a plasma membrane. |
| Ontology: | Anatomy Ontology [ZFA:0009000] |