Find out what you need to know about the brachial artery, as well as blood supply to the arm, forearm, and hand. Learn about the location of this artery and how to keep it safe.

Ulnar artery flow tapers and stops in forearm (arrow). Figure 2. Figure 2. Operative photograph of ulnar artery with aneurysm at wrist. Artery is tortuous distal to aneurysm.

Dull pain in the left arm that comes and goes can be due to a pinched nerve, injury, or CTS. It can also indicate a heart attack, which is an emergency.