Superficial branch of ulnar nerve
Nervous system · part of Branches of medial cord of brachial plexus
The superficial branch of the ulnar nerve is a terminal branch of the ulnar nerve. It supplies the palmaris brevis and the skin on the ulnar side of the hand. It also divides into a common palmar digital nerve and a proper palmar digital nerve. The proper digital branches are distributed to the fingers in the same manner as those of the median nerve. (Wikipedia)