Dorsal aspect of hand

Superficial branch of radial nerve at wrist, lateral view

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Image #109-6

Dorsal aspect of hand

Superficial branch of radial nerve at wrist, lateral view

The specimen has been turned so that the lateral (radial) border of the wrist is in the foreground. The cephalic vein (3, 7) has been cut to display the course of the superficial branch of the radial nerve.

1. Dorsal digital nerves of radial nerve
2. Dorsal carpal ligament
3. Cephalic vein (distal portion)
4. Articular branch of superficial branch of radial nerve
5. Extensor pollicis brevis muscle
6. Abductor pollicis longus muscle
7. Cephalic vein (proximal portion)
8. Superficial branch of radial nerve
9. Extensor carpi radialis longus muscle (tendon)
10. Brachioradialis muscle (tendon)
11. Lateral antebrachial cutaneous nerve
12. Radial artery and veins
13. Flexor pollicis longus muscle
14. Flexor carpi radialis muscle (tendon)
15. Flexor digitorum superficialis
16. Superficial anterior branch radial artery
17. Position of compartment deep to dorsal carpal ligament for abductor pollicis longus muscle and extensor pollicis brevis muscle
18. Abductor pollicis longus muscle (tendons of insertion, one of which joins abductor pollicis brevis muscle)
19. Abductor pollicis brevis muscle