Second Order: Muscles of hand, fingers, and thumb Part 1

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The flashcards below were created by user brau2308 on FreezingBlue Flashcards.


  1. Flexor digitorum profundus
    Origin:
    anterior, middle ulna
  2. Flexor digitorum profundus
    Insertion:
    4 tendons run into bases of distal phalanges
  3. Flexor digitorum profundus
    Action:
    flexes following joints in fingers 2 (index)-5 (little): wrist, MP, PIP, and DIP
  4. Flexor digitorum profundus
    Innervation:
    • index and middle- Median
    • ring and little- Ulnar
  5. Flexor digitorum superficialis
    Origin:
    common flexor tendon from medial epicondyle of humerus
  6. Flexor digitorum superficialis
    Insertion:
    sides of middle phalanges of the 4 fingers (not thumb)
  7. Flexor digitorum superficialis
    Action:
    flexes wrist and MP, PIP joints in fingers (not thumb)
  8. Flexor digitorum superficialis
    Innervation:
    median
  9. Extensor digitorum
    Origin:
    lateral epicondyle of humerus
  10. Extensor digitorum
    Insertion:
    extensor expansions of 4 digits and specifically into base of proximal phalanx
  11. Extensor digitorum
    Action:
    extend wrist and 4 fingers at MP joints; ext PIP and DIP joints
  12. Extensor digitorum
    Innervation:
    radial
  13. Lumbricales
    Origin:
    tendons of flexor digitorum profundus
  14. Lumbricales
    Insertion:
    radial border of extensor expansions of 2-5th digits
  15. Lumbricales
    Action:
    flex MP joints, extends PIP and DIP joints of fingers (not thumb)
  16. Lumbricales
    Innervation:
    • 2/3- median
    • 4/5- ulnar
  17. Palmar interossei
    Origin:
    ulnar side of 1, 2, 4, 5th metacarpals
  18. Palmar interossei
    Insertion:
    extensor expansions of 2, 4, 5 digits and bases of proximal phalanges
  19. Palmar interossei
    Action:
    adduct thumb, index, ring, and little fingers toward the axial line; assists w/ PIP and DIP joint extension
  20. Palmar interossei
    Innervation:
    ulnar
  21. Dorsal interossei
    Origin:
    adjacent sides of 2 metacarpals
  22. Dorsal interossei
    Insertion:
    bases of proximal phalanges extensor expansions of 2nd-4th digits
  23. Dorsal interossei
    Action:
    abduct 2nd-4th digits; assist with PIP and DIP joint extension
  24. Dorsal interossei
    Innervation:
    ulnar
  25. Abductor pollicis longus
    Origin:
    posterior surface of proximal ulna and radius
  26. Abductor pollicis longus
    Insertion:
    base of 1st metacarpal (radial side)
  27. Abductor pollicis longus
    Action:
    abducts and extends CMC joint of thumb, abducts (radially deviates) and flexes wrist
  28. Abductor pollicis longus
    Innervation:
    radial

Card Set Information

Author:
 brau2308
ID:
 166779
Filename:
 Second Order: Muscles of hand, fingers, and thumb Part 1
Updated:
2012-08-21 02:02:43
Tags:
human movement origin insertion action innervation hand fingers thumb
Folders:

Description:
review of second order for human movement quiz
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