| Atrioventricular nodal branch | |
|---|---|
 Sternocostal surface of heart. | |
 ARTERIES: RCA = right coronary AB = atrial branches SANB = sinuatrial nodal RMA = right marginal LCA = left coronary CB = circumflex branch LAD/AIB = anterior interventricular LMA = left marginal PIA/PDA = posterior descending AVN = atrioventricular nodal VEINS: SCV = small cardiac ACV = anterior cardiac AIV/GCV = great cardiac MCV = middle cardiac CS = coronary sinus | |
| Details | |
| Identifiers | |
| Latin | ramus nodi atrioventricularis |
| TA98 | A12.2.03.110 A12.2.03.213 |
| TA2 | 4140 |
| FMA | 3851 |
| Anatomical terminology | |
The atrioventricular nodal branch is a coronary artery that supplies arterial blood to the atrioventricular node, which is responsible for initiating muscular contraction of the ventricles. The AV nodal branch is most often a branch of the right coronary artery.