- Coronary circulation: arterial supply of the heart via the right and left coronary arteries, branches of the ascending aorta; venous return chiefly via the coronary sinus.
arterial supply of the heart Arterial supply of the heart.
Right Coronary Artery
- Right coronary artery: from the anterior aortic sinus, above the aortic valve; runs in the right AV groove, anastomosing with the left coronary artery.
- Course:
- initially passes between the pulmonary trunk and the right auricle
- descends into the right anterior coronary sulcus
- terminal course lies in the right posterior coronary sulcus
- ends in the posterior interventricular groove
- Branches: right conus artery, atrial branches (sinuatrial nodal artery), anterior and posterior ventricular branches, posterior interventricular artery.