Figure 1

Partial ulnar nerve transfer. Partial ulnar nerve transfer to a branch of the musculocutaneous nerve innervating the biceps brachii muscle. 1: Musculocutaneous nerve, 2: Median nerve, 3: Ulnar nerve, 4: A branch of the musculocutaneous nerve innervating the biceps brachii muscle, 5: A part of the ulnar nerve.