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Heart & Blood Vessels: Your Coronary Arteries. The heart receives its own supply of blood from the coronary arteries. Two major coronary arteries branch off from the aorta near the point where the aorta and the left ventricle meet. These arteries and their branches supply all parts of the heart muscle with blood. Left Main Coronary Artery (also called the left main trunk)
Near the top of the aortic arch, there are three major arteries that distribute blood flow to the upper thorax, arms and head. The first is the brachiocephalic artery, which shortly branches into the right subclavian artery (supplies the upper thorax, right arm and head) and right common carotid artery (supplies head).