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EPL

1st dorsal interosseous

EPB

Adductor pollicis (1)

Extensor (dorsal) expansion

1

Extensor digitorum (6)

2

1st metacarpal

1st dorsal interosseous (2)

Extensor pollicis brevis (5)

Radial artery

6

APL

Opponens pollicis

6

Abductor pollicis longus (4)

Extensor pollicis longus (3)

Joint capsule of 1st carpometacarpal joint

3

Midcarpal joint

5

Extensor carpi radialis brevis

Anatomical snuff box

Scaphoid bone

Wrist joint

Extensor carpi radialis longus

Styloid process of radius

6

Radial artery

4

Extensor digitorum (6)

D. Lateral View

Flexor carpi radialis

Distal Extents of:

EPL EPB APL

Extensor pollicis longus Extensor pollicis brevis Abductor pollicis longus

Brachioradialis

C. Lateral View

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11/30/2011 3:49:16 PM