<P> In human anatomy , the subclavian arteries are paired major arteries of the upper thorax , below the clavicle . They receive blood from the aortic arch . The left subclavian artery supplies blood to the left arm and the right subclavian artery supplies blood to the right arm , with some branches supplying the head and thorax . On the left side of the body , the subclavian comes directly off the aortic arch , while on the right side it arises from the relatively short brachiocephalic artery when it bifurcates into the subclavian and the right common carotid artery . </P>
<P> In human anatomy , the subclavian arteries are paired major arteries of the upper thorax , below the clavicle . They receive blood from the aortic arch . The left subclavian artery supplies blood to the left arm and the right subclavian artery supplies blood to the right arm , with some branches supplying the head and thorax . On the left side of the body , the subclavian comes directly off the aortic arch , while on the right side it arises from the relatively short brachiocephalic artery when it bifurcates into the subclavian and the right common carotid artery . </P>
what part of the body does the left subclavian artery supply
what part of the body does the left subclavian artery supply
the left arm
the left arm