Dorsal aspect of right forearm

Nerve supply to extensor carpi radialis brevis muscle

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Image #107-2

Dorsal aspect of right forearm

Nerve supply to extensor carpi radialis brevis muscle

The muscle has been detached and retracted dorsally. The specimen has been turned so that the radial border of the forearm lies in the foreground of the view.

1. Median nerve
2. Radial artery
3. Flexor digitorum superficialis (divided but not reflected)
4. Pronator teres muscle (area of insertion)
5. Radius
6. Right pointer: Brachioradialis muscle (tendon of insertion) Left pointer: Extensor carpi radialis longus muscle (tendon of insertion)
7. Extensor carpi radialis brevis muscle (dissected)
8. Common extensor digitorum muscle
9. Muscular branch radial artery
10. Supinator muscle
11. Muscular branch of radial nerve (to extensor carpi radialis brevis muscle)
12. Deep branch of radial nerve