| 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: | extracellular matrix |
|---|---|
| Synonyms: | matrisome, proteinaceous extracellular matrix |
| Definition: | A structure lying external to one or more cells, which provides structural support, biochemical or biomechanical cues for cells or tissues. |
| Ontology: | GO: Cellular Component [GO:0031012] QuickGO AmiGO |