Answer the following Q with stream of consciousness. Passage: 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.

Question: Based on this passage, where does blood from the subclavian artery go?
The relevant information is: 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. Therefore, the final answer is 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.