Coronary Arteries: Arterial Blood Supply of the Heart
| Coronary Artery | Blood Supply to the Heart Muscle | Blood Supply to the Conduction System |
|---|---|---|
| Right coronary artery | Right atrium, right ventricle, inferior portion of the left ventricle, posterior portion of the septum | Sinoatrial node Atrioventricular node Bundle of His |
Left coronary artery
| Anterior and inferior portion of the left ventricle, anterior portion of septum | Right bundle branch Left bundle branch |
| Left coronary artery | Left atrium, lateral and posterior portion of the left ventricle | Sinoatrial node Atrioventricular node Bundle of His |
