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AAAC37 21/5/05 10:48 AM Page 84
37 The forearm

Brachial artery
Brachio- Common flexor
radialis
Medial epicondyle origin
Tendon of biceps
Ulnar artery
Pronator Posterior Ulnar nerve
teres Flexor digitorum interosseous Supinator
profundus nerve
Pronator teres
Flexor carpi Flexor digitorum
radialis superficialis Flexor digitorum
superficialis
Radial head
Dorsal branch of
Palmaris Flexor pollicis ulnar (cutaneous)
longus longus Radial artery
Flexor carpi Flexor pollicis longus
ulnaris Superficial Median nerve
Pronator radial nerve Pronator quadratus
quadratus
Palmaris longus
Fig.37.1
Fig.37.2 tendon
The superficial, intermediate and deep layers of the front of the forearm
The main arteries and nerves
of the front of the forearm

Radial nerve

Flexor carpi ulnaris
Anconeus
Superficial branch
Extensor digitorum
Extensor carpi ulnaris Supinator
Extensor digiti minimi
Deep (posterior
Extensor carpi radialis interosseous) branch
longus and brevis
Posterior border of ulna Abductor pollicis longus
Abductor pollicis longus
and extensor pollicis brevis
Extensor retinaculum Extensor pollicis longus
Anatomical
Extensor pollicis longus Extensor pollicis brevis
snuffbox
Superficial branch
First dorsal interosseous Dorsal tubercle of radius
Tendons of snuffbox
Branches to
Fig.37.3 carpal joints Cutaneous branches
to digits
The muscles of the superficial and deep layers
of the back of the forearm and the radial nerve

84 Upper limb