2.6

Card Set Information

Author:
efrain12
ID:
239803
Filename:
2.6
Updated:
2013-10-09 18:18:50
Tags:
AnP
Folders:

Description:
posterior forearm
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user efrain12 on FreezingBlue Flashcards. What would you like to do?


  1. how many superficial psoterior mucles are there?
    7
  2. how many deep posterior muscles are there?
    5
  3. by what nerve are all posterior forearm muscles innervated by?
    radial nerve
  4. Posterior muscles are the ____ and _____ of the wrist and hand
  5. how many superficial muscles originate from the lateral epicondyle of the humerus?
    4 out of 7
  6. what does the extensor retinaculum do?
    holds the extensor tendons in place
  7. what does the extensor expansion hood do?
    attaches the tendons to the phalanges on the posterior side of the fingers
  8. what are the 7 superficial muscles?
    -anconeus

    -extensor carpi ulnaris

    -extensor digiti minimi

    -extensor digitorium

    -extensor carpi radialis brevis

    -extensor carpi radialis longus

    -brachioradialis
  9. superficial) extensor carpi radialis longus- origin
    lateral supercondylar ridge
  10. superficial) extensor carpi radialis longus- inserts
    base of the 2nd metacarpel
  11. superficial) extensor carpi radialis longus- innervated?
    radial nerve
  12. superficial) extensor carpi radialis longus- action? (2)
    -extends wrist 

    -abducts wrist
  13. superficial) extensor carpi radialis longus- what structure does it usually fuse with?
    brachioradialis
  14. superficial) extensor carpi radialis brevis- origin?
    lateral epicondyle of humerus
  15. superficial) extensor carpi radialis brevis- inserts
    base of the 3rd metacarpal
  16. superficial) extensor carpi radialis brevis- innervated
    radial nerve
  17. superficial) extensor carpi radialis brevis- action? (2)
    • -extends the wrist
    • *extensor carpi ulnaris

    • -and abducts the wrist
    • *flexor carpi radialis
  18. superficial) extensor carpi radialis brevis- is it superficial or deep to the extensor carpi radialis longus?
    deep
  19. superficial) extensor carpi radialis brevis- which is the shorter one between this one and the superficial) extensor carpi radialis longus?
    brevis
  20. superficial) extensor digitorium- origins?
    lateral epicondyle of humerus
  21. superficial) extensor digitorium- inserts
    4 tendons insert in extensor expansion hood on the 4 digits
  22. superficial) extensor digitorium- innervated
    -radial nerve
  23. superficial) extensor digitorium- action (2)
    -extends fingers

    -extends wrist
  24. superficial) extensor digitorium- what movement is this the main thing for?
    main extensor
  25. superficial) extensor digiti minimi- with what msucle is this partially attached to?
    extensor digitorium
  26. superficial) extensor digiti minimi- origin
    -lateral epicondyle of humerus
  27. superficial) extensor digiti minimi- inserts
    -extensor expansion hood of the 5th digit
  28. superficial) extensor digiti minimi- innervated
    radial nerve
  29. superficial) extensor digiti minimi- action (2)
    -extends the little finger

    -extends the wrist
  30. superficial) extensor carpi ulnaris- origin
    lateral epicondyle of the humerus
  31. superficial) extensor carpi ulnaris- inserts
    base of the 5th metacarpal
  32. superficial) extensor carpi ulnaris- innervated
    radial nerve
  33. superficial) extensor carpi ulnaris- action (2)
    • -extends the wrist
    • *with extensor carpi radialis

    • -adducts the wrist
    • *with flexor carpi ulnaris
  34. superficial) extensor carpi ulnaris- when it acts independently what is its action?
    adducts and extends the wrist simultaneously
  35. what are the 5 deep muscles of the psoterior forearm
    -supinator

    -abductor pollicis longus

    -extensor pollicis brevis

    -extensor pollicis longus

    -extensor indicis
  36. deep) supinator- origin
    lateral epicondyle of humerus
  37. deep) supinator- inserts
    proximal end of the radius
  38. deep) supinator- innervated
    radial nerve
  39. deep) supinator- action (2)
    -supinates the forearm when slow motion is required

    -joins the biceps brachii for forceful speedy supination
  40. deep) where is the anatomical snuffbox?
    • dorso-lateral side of the hand
    • * it is a depression
  41. deep) anatomical snuffbox- what 2 boundaries surround it? (2)
    -extensor pollicis longus

    -extensor pollicis brevis
  42. deep) abductor pollicis longus- origin (2)
    -posterior surface of the radius and ulna

    -intereserous membrane
  43. deep) abductor pollicis longus- inserts?
    at the base of the 1st metacarpal
  44. deep) abductor pollicis longus- innervated
    radial nerve
  45. deep) abductor pollicis longus- action (2)
    -abducts and extends the thumb
  46. deep) abductor pollicis longus- which 2 tendons does it cross?
    extensor carpi radialis longus and brevis
  47. deep) extensor pollicis brevis- origin
    posterior radius
  48. deep) extensor pollicis brevis- insertion
    proximal phalanx of thumb
  49. deep) extensor pollicis brevis- innervated
    radial nerve
  50. deep) extensor pollicis brevis- action
    -extends thumb
  51. deep) extensor pollicis longus- origin
    ulna
  52. deep) extensor pollicis longus- inserts
    distal phalanx of the thumb
  53. deep) extensor pollicis longus- innervated
    radial nerve
  54. deep) extensor pollicis longus- action
    extends thumb
  55. movements of the thumb- flexion
    bending thumb medially
  56. movements of the thumb- extension
    • pointing thumb laterally
    • *in frontal plane
  57. movements of the thumb- abduction
    • point anteriorly
    • *in saggital plane
  58. movements of the thumb- adduction
    bring it back posteriorly
  59. deep) extensor indicis- what muscle covers this?
    extensor digitorium
  60. deep) how many muscles exit laterally? and which are they?
    4; 

    -extensor indicis

    -extensor pollicis longus

    -extensor pollicis brevis

    -abductor pollicis longus
  61. what is lateral epicondylitis?
    • inflammation of the common extensor tendon on the lateral epicondyle of the humerus
    • *many muscles extend from here thus creating a high load
    • **tennis elbow
  62. what is medial epicondylitis?
    • inflammation of the common flexor tendon on the medial epicondyle of the humerus
    • *little league elbow

What would you like to do?

Home > Flashcards > Print Preview