| Name: | atrial myocardium | 
|---|---|
| Synonyms: | |
| Definition: | Myocardium of the heart atrium. | 
| Ontology: | Anatomy Ontology [ZFA:0001374] | 
| Name: | cardiac myofibril | 
|---|---|
| Synonyms: | |
| Definition: | A cardiac myofibril is a myofibril specific to cardiac muscle cells. | 
| Ontology: | GO: Cellular Component [GO:0097512] QuickGO AmiGO |