wrist

Card Set Information

Author:
jpowell22
ID:
151572
Filename:
wrist
Updated:
2012-05-01 20:48:24
Tags:
functional anatomy
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Description:
wrist/hand
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  1. What are the 2 joints of the wrist?
    • radiocarpal
    • midcarpal
  2. What does the radiocarpal jt articulate with?
    (proximal) distal radius, radioular disc articulates with the scaphoid, lunte, and triquetrum (distal)

    all carpal bones
  3. What type of jt is the radiocarpal jt?
    synovial, biaxial, condyloid
  4. What is between the carpal bones?
    midcarpals/intercarpals
  5. What type of jt is the midcarpal jt?
    nonaxial, irregular/plane gliding jt

    between 2 rows of carpals, contributes to wrist motion
  6. What mvmts do you get at the radiocarpal jt?
    • flex/ext
    • radial/ulnar deviation
    • circumduction
  7. What mvmts do you get at the midcarpal jt?
    gliding
  8. The styloid process of the radius and ulna are the attachments for what?
    collateral ligament
  9. What is the attachment for the transverse carpal ligament?
    hok of hamate (hook is on ant. surface)
  10. What is the attachment for the common flexor tendon?
    medial epicondyle
  11. What is the attachment for the common extensor tendon?
    lateral epicondyle
  12. What is another name for golfers elbow?
    medial epicondylitis
  13. What is another name for tennis elbow?
    lateral epicondylitis
  14. The supracondylar ridge is the attachment for what muscle?
    extensor carpi radialis longus
  15. What are the 4 proximal carpals?
    • scaphoid
    • lunate
    • triquetrum
    • pisiform
  16. What are the 4 distal carpals?
    • trapezium
    • trapezoid
    • capitate
    • hamate
  17. Where does the (distal) ulnar collateral lig. attach?
    styloid process of ulna to the pisiform and triquetrum bones
  18. What does the ulnar collateral lig. do?
    provides support medially to wrist
  19. Where does the (distal) radial collateral ligament attach?
    styloid process of radius to the scaphoid and trapezium bones
  20. What does the radial collateral ligament do?
    provides support laterally to wrist
  21. Where does the dorsal radiocarpal ligament attach?
    posterior surface of distal radius to posterior surface of scaphoid, lunate, and triquetrum
  22. What does the dorsal radiocarpal lig. do?
    limits wrist flexion

    not as strong as palmar radiocarpal ligament
  23. Where does the palmar radiocarpal ligament attach?
    anterior distal radius and ulna to anterior surface of scaphoid, lunate, and triquetrum
  24. What does the palmar radiocarpal lig. do?
    • thick, tough ligament
    • limits wrist extension
    • important for wrist fxn bc most wrist activities are performed in wrist ext.
  25. Where does the articular disc (radioulnar disc) articulate?
    at distal ulna to the lunate and triquetrum

    shock absorption and a filler
  26. What are the characteristics of the palmar fasia (aponeurosis)?
    • thick, superficial on palm of hand
    • covers tendons of the extrinsic muscles
    • provides some protection of structures of palm
    • *distal attachment (insertion) of palmaris longus
    • palmaris longus and flexor retinaculum blend into this fascia
  27. What 3 muscles are on the ant. surface of the arm and flex?
    • flexor carpi radialis
    • flexor carpi ulnaris
    • palmaris longus
  28. What 3 muscles are on the posterior surface of the hand and extend?
    • extensor carpi radialis longus
    • extensor carpi radialis brevis
    • extensor carpi ulnaris

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