The deep palmar arterial arch refers to the extensions of the ulnar artery which branch out above the wrist area. It extends down the middle of the wrist, then curves around the side into the palm of the hand, accompanied by the deep branch of the radial nerve, to form a network of nerves and blood vessels. At this point it joins the radial artery and completes the deep palmar arch in the upper area Continue Scrolling To Read More Below...