What is deep brachial?

The deep brachial artery, also known as the profunda brachii artery, is a major blood vessel in the upper arm that branches off the brachial artery. It supplies blood to the muscles and tissues of the posterior compartment of the arm and contributes to the blood supply of the elbow joint. This artery runs alongside the radial nerve and is critical for the vascularization of the triceps brachii muscle. It is important in both surgical and diagnostic contexts involving the arm.