Nerves of the forearm: Anterior view (English)

The median nerve is the principal nerve of the anterior compartment of the forearm. It gives rise to the anterior interosseous nerve as well as several muscular branches. The ulnar nerve travels through the forearm, supplying only the flexor carpi ulnaris and part of flexor digitorum profundus muscles as it travels to supply structures of the hand. The radial nerve divides into its superficial and deep branches soon just before it enters the forearm. Cutaneous innervation of the forearm is supplied by the medial and lateral antebrachial cutaneous nerves and their associated branches. The medial antebrachial cutaneous nerve arises from the medial cord of the brachial plexus while the lateral antebrachial cutaneous nerve is a continuation of the musculocutaneous nerve.