ABSTRACT
Skin sensory supply is from the ulnar nerve (7) to the palmar and dorsal aspects of the medial (ulnar) side of the hand. It gives the dorsal and palmar digital branches (8) to both aspects of the medial (ulnar) one and a half digits, including the nail beds. The tip of the little finger is the ulnar nerve autonomous area. The remainder of the dorsum (except nail beds) is supplied by the radial nerve, the first dorsal web space being the autonomous area. The median nerve (11) supplies the palmar aspect of the lateral (radial) palm, and via its digital branches (12) the lateral three and half digits, including the nail beds. The tip of the index finger is the autonomous area.
