The first branches of the median nerve are motor and emerge in the region of the elbow crease. They inner- ate the pronator teres, flexor carpi radialis, palmaris longus and flexor digitorum superficialis. The median nerve then passes under the two heads of the pronator teres where it gives off the anterior interosseous nerve 5-8 cm below the medial epi condyle. This nerve innervates the flexor pollicis longus, flexor digitorum profundus of the index and middle fingers and the pronator quadratus. It ends in articular branches to the radiocarpal, distal radioulnar, midcarpal and carpometacarpal joints.