The branches of the aortic arch, for the vast majority of normal people, are mainly the cephalic brachial trunk (or innominate artery), the left common carotid artery, and the left subclavian artery. The aorta is the largest arterial vessel in the body’s circulation emanating from the left ventricle of the heart, and is the common blood outflow channel supplying organs and tissues throughout the body. It is equivalent to the first main stream of a water supply dam, and once a problem occurs, all of the tributaries may malfunction. The aortic arch is the highest place where the aortic vessels rise to the turn, mainly issuing three largest branch vessels, namely, the cephalic trunk, the left common carotid artery, the left subclavian artery, supplying the head and the blood supply of the upper limbs of both sides of the head and the cephalic trunk is routinely branched downward for the right common carotid artery, the right subclavian artery.