The ulnar artery is one of two major blood vessels that supply blood to the forearm and hand. One of these vessels is called the deep palmar arch. After it travels across the wrist, the radial artery branches to form a network of blood supply vessels in the hand. You can feel the pulse of the radial artery just under the skin on the thumb side of the wrist. In the forearm, it travels deep under muscle until it comes closer to the skin surface near the wrist. The radial artery comes from the brachial artery and travels across the front of the elbow. The radial artery is one of two major blood vessels that supply blood to the forearm and hand. It begins under the pectoralis muscle and travels down the arm before splitting into two arteries (the radial artery and the ulnar artery) at the elbow. The brachial artery is a blood supply vessel and is a continuation of the axillary artery. The axillary artery continues down the arm as the brachial artery. 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.
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