| Label | Id | |
|---|---|---|
| Koch's node | http://purl.org/sig/ont/fma/fma9477 | |
| 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 | |
| Sino-atrial node | http://purl.org/sig/ont/fma/fma9477 | |
| Sinoatrial node | http://purl.org/sig/ont/fma/fma9477 | |
| Sinu-atrial node | http://purl.org/sig/ont/fma/fma9477 |