From medial to lateral the sequence of neuronal cutaneous receptive fields progress from intraoral through face, thumb, fingers (radial to ulnar), and arm to leg.
Similarly, excision of the ulnar head and synovectomy of the wrist may give considerable pain relief and free extensor tendons which are at risk of rupture.
It is not at all uncommon, for instance, for a patient with rheumatoid arthritis to rest their head on their fist, pushing the fingers into marked ulnar drift.
The ulnar nerve provides cutaneous sensory innervation to the back of the little finger and adjacent half of the ring finger.
The blood is brought back by vessels from the radial, ulnar, and brachial veins.
It communicates with the medial brachial cutaneous, the dorsal antibrachial cutaneous branch of the radial, and the dorsal branch of the ulnar.
Brevis moves the arm from ulnar abduction to its mid-position and flexes dorsally.
However, he returned home before the games started due to a partially torn ulnar collateral ligament in his right elbow.
