| | Function of the Coronary Arteries : MCG Health System |
 | | The coronary arteries consist of two main arteries: the right and left coronary arteries, and their two branches, the circumflex artery and the left anterior descending artery. |
 | | Since coronary arteries deliver blood to the heart muscle, any coronary artery disorder or disease can have serious implications by reducing the flow of oxygen and nutrients to the heart, which may lead to a heart attack and possibly death. |
 | | The right coronary artery (RCA), which divides into the right posterior descending artery and a large marginal branch, supplies blood to the heart ventricles, right atrium, and sinoatrial node (cluster of cells in the right atrial wall that regulates the heart's rhythmic rate). |
| www.mcghealth.org /Greystone/heart/arteries.html (354 words) |