Volar aspect of forearm

Nerve supply to flexor pollicis longus muscle

Stanford holds the copyright to the David L. Bassett anatomical images and has assigned Creative Commons license Attribution-Share Alike 4.0 International to all of the images.
For additional information regarding use and permissions, please contact the Medical History Center.

Image #98-7

Volar aspect of forearm

Nerve supply to flexor pollicis longus muscle

The muscle has been elevated and its fascicles separated or cut away in part to expose the intramuscular course of its nerve.

1. Abductor pollicis longus muscle
2. Brachioradialis muscle (tendon of insertion)
3. Extensor carpi radialis longus muscle (tendon of insertion)
4. Extensor can radialis brevis muscle (tendon of insertion)
5. Radius
6. Flexor digitorum superficialis (radial head, cut off)
7. Pronator teres muscle (insertion)
8. Muscular branch anterior interosseous nerve
9. Ulnar artery
10. Flexor pollicis longus muscle (elevated)
11. Flexor digitorum profundus muscle
12. Ulnar nerve
13. Anastomotic branch between median and ulnar nerves
14. Anterior interosseous nerve