Aortic arch: major branch order "Know your ABC'S": Aortic arch gives rise to: Brachiocephalic trunk left Common Carotid left Subclavian Beware though trick question of 'What is first branch of aorta?' Technically, it's the coronary artert
The subclavian arteries are the major arteries of the upper thorax. It receives blood from the aortic arch. The left subclavian artery gives blood to the left arm and the right subclavian artery to the right arm.