The Coronary Arteries

The heart, being a muscle, requires blood to function just like skeletal muscles do. The blood is delivered to the heart muscle (myocardium) by the coronary arteries. The Right Coronary Artery (RCA) services the right side of the heart. The Left Main splits into the Left Anterior Descending Artery (LAD) and the Circumflex. The Diagonals branch off the LAD and the Obtuse Marginals (OM1 and OM 2) branch off the circumflex. The LAD services the Left Ventricle, which is the main pumping chamber of the heart.

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