Posterior view of the deep structures on extensor aspect of forearm.

Anterior view of the bones of the forearm and hand showing muscle attachments.

Section through distal carpal tunnel; for level of section, see insert (line A).

Posterior view of radial nerve innervation.

Lateral aspect of the wrist, showing the scaphoid bone, wrist joint, midcarpal joint, 1st carpometacarpal joint capsule, abductor pollicis brevis, and adductor pollicis muscles.

Transverse MRI of forearm: CV, cephalic v.; BR, brachioradialis; BV, brachial ves.; PT, pronator teres; BB, biceps brachii; R, radius; U, ulna; FDS, flex. dig. super; FCU, flex. carpi ulnaris; FDP, flex. dig. profundus; ECU, ext. carpi ulnaris; SP, supina

Extensor carpi radialis palpation