The right coronary artery supplies the inferior myocardial segments as well as the right ventricle. In a majority of cases, the right coronary artery also supplies the SA node and the AV node.

Also recall that the right coronary artery (RCA), in addition to supplying the right ventricle and inferior walls, also supplies the sinoatrial node (SA node) and the atrioventricular node (AV node).