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

Posterior view of muscles of the extensor region of forearm; digital extensors have been reflected.

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.

Ulnar and median nerve branches in palm of hand. Note that all seven interossei muscles are supplied by the ulnar nerve.

Posterior view of the extensor pollicis longus muscle with bony attachments.

Anterior view of the extensor carpi radialis brevis muscle with bony attachments.

Lateral view of the extensor carpi radialis brevis muscle with bony attachments.

Synovial sheaths and tendons at ankle. C. Surface anatomy of ankle and foot. Observe the swelling of the fleshy belly of the extensor digitorum brevis muscle (3).

Carpal tunnel; see insert (line B) for level: HH, hook of hamate; H, hamate; C, capitate; Tz, trapezoid; Tm, trapezium. Numbers refer to structures in the area.

Leg, anterolateral view.

Overview of the motor distribution of nerves of lower limb. C. Common fibular (peroneal nerve), anterior view.

Extensor pollicis brevis