Dorsal aspect of right forearm

Nerve supply to extensor pollicis brevis muscle

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Image #108-4

Dorsal aspect of right forearm

Nerve supply to extensor pollicis brevis muscle

1. Muscular branch of radial nerve (to extensor pollicis brevis muscle)
2. Abductor pollicis longus muscle
3. Branch anterior interosseous artery
4. Extensor pollicis brevis muscle
5. Extensor pollicis longus muscle
6. Extensor indicis muscle
7. Ulna
8. Intermuscular septum
9. Dorsal interosseous artery