Notes
•The median nerve supplies no muscles in the arm.
In the forearm, the median nerve supplies
•pronator teres,
•flexor carpi radialis,
•palmaris longus,
•flexor digitorum superficialis,
•flexor pollicis longus ,
•pronator quadratus and the
•lateral half of flexor digitorum profundus(via anterior interosseous)
The ulnar nerve supplies no muscles in the arm; in the forearm it supplies
•flexor carpi ulnaris and
•the medial half of flexor digitorum profundus
The Median Nerve- Fun Facts
•It passes in front of the Brachial Artery and at the elbow is medial to it
•It passes between the 2 heads of pronatorteresand supplies it.
•It supplies all muscle of the anterior compartment of the forearm except
•FCU and
•Medial(ulnar) part of FDP
It has branches in the forearm:
•Articular branches- to elbow joint as median nerve passes it
•Muscular Branches- to pronator teres, then a nerve bundle pierces superficial muscles to innervate FCR, PL and FDS
•Anterior Interosseous Nerve- runs on interosseous membrane with with anterior interosseous branch of ulnar artery
•It supplies FDP except ulnar part that sends tendons to 4thand 5thfingers
•It supplies Pronator quadratus
•Then sends branches to the wrist joint
•Palmar cutaneous branch of Median nerve
•Arises proximal to flexor retinaculum and is distributed to the skin of the central part of the palm
In the forearm, the median nerve supplies
•pronator teres,
•flexor carpi radialis,
•palmaris longus,
•flexor digitorum superficialis,
•flexor pollicis longus ,
•pronator quadratus and the
•lateral half of flexor digitorum profundus(via anterior interosseous)
The ulnar nerve supplies no muscles in the arm; in the forearm it supplies
•flexor carpi ulnaris and
•the medial half of flexor digitorum profundus
The Median Nerve- Fun Facts
•It passes in front of the Brachial Artery and at the elbow is medial to it
•It passes between the 2 heads of pronatorteresand supplies it.
•It supplies all muscle of the anterior compartment of the forearm except
•FCU and
•Medial(ulnar) part of FDP
It has branches in the forearm:
•Articular branches- to elbow joint as median nerve passes it
•Muscular Branches- to pronator teres, then a nerve bundle pierces superficial muscles to innervate FCR, PL and FDS
•Anterior Interosseous Nerve- runs on interosseous membrane with with anterior interosseous branch of ulnar artery
•It supplies FDP except ulnar part that sends tendons to 4thand 5thfingers
•It supplies Pronator quadratus
•Then sends branches to the wrist joint
•Palmar cutaneous branch of Median nerve
•Arises proximal to flexor retinaculum and is distributed to the skin of the central part of the palm