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Anatomy Atlases: Atlas of Human Anatomy in Cross Section: Section 4. Upper Limb

Atlas of Human Anatomy in Cross Section: Section 4. Upper Limb

Plate 4.26

Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Jean J. Jew, M.D., and Paul C. Reimann, B.S.
Peer Review Status: Externally Peer Reviewed

Plate 4.26

Upper Left Quadrant

Lower Left Quadrant

Lower Right Quadrant

Upper Right Quadrant

1. Median nerve
2. Tendon m. flexor pollicis longus
3. Tendon m. flexor carpi radialis
4. Radial a.
5. Tendon m. abductor pollicis longus

6. Carpal bone, trapezium
7. Carpal bone, scaphoid
8. Tendon m. extensor carpi radialis longus
9. Tendon m. extensor carpi radialis brevis
10. Tendon m. extensor pollicis longus
11. Tendon m. extensor digitorum communis

12. Extensor retinaculum
13. Tendon m. extensor digiti minimi
14. Tendon m. extensor carpi ulnaris
15. Carpal bone, lunate
16. Carpal bone, triquetrum
17. Basilic v.

18. Tendon m. flexor carpi ulnaris
19. Tendons m. flexor digitorum profundus
20. Ulnar nerve
21. Ulnar a.
22. Antebrachial fascia, wrist
23. Tendons m. flexor digitorum superficialis
24. Tendon m. palmaris longus

This section is the first of the wrist and hand series of sections. At this point, all muscles destined for the hand are tendinous and positioned to traverse the wrist.

Four carpal bones of the proximal row are sectioned. These are triquetrum (16), lunate (15), scaphoid (7) and trapezium (6). The trapezium is the only one of the four bones that does not articulate with the radius.

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