Nerves of the forearm | Forearm

Nerves of the forearm

The forearm muscles are innervated mainly by nerves from the brachial plexus of the arm. These nerves run along the upper arm and then innervate the radial nerve in the forearm, especially the muscles of the back of the forearm and the extensor muscles of the forearm. Furthermore, sensitive skin nerves branch off from it, which parts of the median nerve innervate almost all flexor muscles of the forearm, and some sensitive fibers also branch off from this nerve.

These supply the skin on the inside of the hand between thumb and ring finger. The ulnar nerve, on the other hand, innervates only very few muscles: It also innervates the skin on the inside of the hand and the back of the hand between the ring finger and the edge of the hand.

  • Skin and
  • Musculature.
  • Thumb and the
  • Sensitive treatment of the back of the hand.
  • The flexor carpi ulnaris muscle and
  • The muscle flexor digitorum profundus.