| Label | Id | |
|---|---|---|
| Aortic vestibule | http://purl.org/sig/ont/fma/fma9473 | |
| Orifice of anatomical junction | http://purl.org/sig/ont/fma/fma9474 | |
| Anatomical junction orifice | http://purl.org/sig/ont/fma/fma9474 | |
| Ostium atrioventriculare | http://purl.org/sig/ont/fma/fma9474 | |
| Conducting system of heart | http://purl.org/sig/ont/fma/fma9476 | |
| Cardiac conduction system | http://purl.org/sig/ont/fma/fma9476 | |
| Cardionector | http://purl.org/sig/ont/fma/fma9476 | |
| Sinuatrial node | http://purl.org/sig/ont/fma/fma9477 | |
| Sinus node | http://purl.org/sig/ont/fma/fma9477 | |
| Sinus node of Keith and Flack | http://purl.org/sig/ont/fma/fma9477 | |
| SA nodal muscle tissue | http://purl.org/sig/ont/fma/fma9477 | |
| SA node | http://purl.org/sig/ont/fma/fma9477 | |
| Node of Keith-Flack | http://purl.org/sig/ont/fma/fma9477 | |
| Cardiac pacemaker | http://purl.org/sig/ont/fma/fma9477 | |
| Sinuatrial nodal muscle tissue | http://purl.org/sig/ont/fma/fma9477 |