| Name: | sinoatrial node |
|---|---|
| Synonyms: | |
| Definition: | Portion of tissue containing 3 and 30 cells in dorsal right quadrant of atrium that initiate heart beat. |
| Ontology: | Anatomy Ontology [ZFA:0005069] |
| Name: | cardiac muscle cell |
|---|---|
| Synonyms: | cardiac muscle cells, cardiac myocyte, cardiomyocyte |
| Definition: | |
| Ontology: | Anatomy Ontology [ZFA:0009316] |