The axillary artery travels deep in the arm pit and gives off several small branches which feed muscles and bones around the shoulder. It gives off several small branches before continuing on as the axillary artery.īlood travels from the heart into the subclavian artery which continues on down the arm as the axillary artery.
It begins near the heart and travels under the clavicle bone toward the shoulder. The subclavian artery is the large vessel that begins the blood supply to the upper extremity. Blood vessels are multi-layered tubes to take blood from the heart in thicker, higher pressure arteries and back to the heart in thinner, flexible and lower-pressure veins.
