If Time can bring you down...Time can bend your knees.... What else has time been responsible for you doing? I've been thinking there's a lot of stuff I don't really want to take full responsibility for...heh heh.
Arterial supply of the upper limb. Dr Omar Bashir et al. The arterial supply of the upper limb is derived from the subclavian artery. The right subclavian artery originates from the brachiocephalic artery, which is the first branch of the aortic arch. The left subclavian artery originates directly from the aortic arch, being the third branch.
Vasculature of the Upper Limbs. The arterial circulation of the upper limb is depicted in Fig. 7.1. The subclavian arteries are the major arteries supplying the upper limbs. On the right side the subclavian artery is one of the terminal branches of the brachiocephalic trunk, while on the left it is one of the direct branches of the aortic arch.