Main nerves of the upper limb - posterior (English)

The axillary and radial nerves both branch off from the posterior cord of the brachial plexus. The axillary nerve supplies the shoulder region, whilst the radial nerve supplies the posterior arm and forearm. The musculocutaneous nerve arises from the lateral cord and mainly supplies the anterior arm. The median nerve arises from both the lateral and medial cords of the brachial plexus and supplies the anterolateral forearm and the lateral hand. Finally, the ulnar nerve branches off the medial cord and supplies the anteromedial forearm and the medial hand.