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Lane Medical Library

Bassett Collection of Stereoscopic Images of Human Anatomy

Sections of forearm and hand

Transverse section of middle third of hand, partially dissected

Image #112-5

KEYWORDS: Fascia ligaments and tendons, Hand and fingers, Muscles and tendons, Skin, Vasculature.

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Sections of forearm and hand
Transverse section of middle third of hand, partially dissected
The flexor tendons and the interosseous, hypothenar and lumbrical muscles have been removed to a depth of 5 mm. from the surface of the section to illustrate synovial sheaths and fascial planes.
  1. Palmar aponeurosis
  2. Superficial fascia (lobules of fat removed to illustrate vertical septa)
  3. Lumbrical muscle III
  4. Upper pointer: Flexor digitorum superficialis (tendon to fourth finger) Lower pointer: Flexor digitorum profundus muscle (tendon to fourth finger)
  5. Common palmar digital nerve of ulnar nerve
  6. Lumbrical muscle IV
  7. Left pointer: Flexor digitorum profundus muscle (tendon to fifth finger) Right pointer: Flexor digitorum superficialis muscle (tendon to fifth finger)
  8. Proper palmar digital nerve of ulnar nerve
  9. Fascia of opponens digiti minimi muscle
  10. Abductor and flexor digiti minimi muscles
  11. Hypothenar fascia
  12. Metacarpal V
  13. Anterior interosseous muscle III
  14. Dorsal interosseous muscle IV
  15. Left pointer: Common extensor digitorum muscle (tendon to fifth finger) Right pointer: Dorsal fascial of the hand
  16. Anterior interosseous fascia
  17. Anterior interosseous muscle II
  18. Dorsal interosseous muscle III
  19. Dorsal interosseous muscle II
  20. Dorsal interosseous fascia
  21. Anterior interosseous muscle I
  22. Extensor indicis muscle (tendon)
  23. Left pointer: Flexor digitorum superficialis and profundus muscles (tendons within synovial sheaths) Right pointer: Lumbrical muscle II
  24. Common palmar digital nerve of median nerve
  25. Left pointer: Flexor digitorum superficialis (tendon to index finger) Right pointer: Flexor digitorum profundus muscle (tendon to index finger)
  26. Proper palmar digital nerve of median nerve
  27. Lumbrical muscle I
  28. Adductor pollicis muscle
  29. Dorsal interosseous muscle