| 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: | sarcomere |
|---|---|
| Synonyms: | |
| Definition: | The repeating unit of a myofibril in a muscle cell, composed of an array of overlapping thick and thin filaments between two adjacent Z discs. |
| Ontology: | GO: Cellular Component [GO:0030017] QuickGO AmiGO |
| Name: | morphology |
|---|---|
| Synonyms: | |
| Definition: | A quality of a single physical entity inhering in the bearer by virtue of the bearer's size or shape or structure. |
| Ontology: | Phenotypic Quality Ontology [PATO:0000051] |