elbow/forearm

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Author:
jpowell22
ID:
150547
Filename:
elbow/forearm
Updated:
2012-04-27 19:52:50
Tags:
functional anatomy
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Description:
elbow/forearm
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  1. What does the humeroulnar joint articulate with?
    trochlea of humerus with the trochlear notch of the ulna

    • diarthrodial, uniaxial, hinge, 0-145degrees ROM
    • sagittal plane, frontal axis
  2. What does the humeroradial jt articulate with?
    capitulum of humerus with the head of the radius

    • diarthrodial, uniaxial, hinge, 0-145degrees ROM
    • sagittal plane, frontal axis
  3. What does the proximal (superior) radioulnar jt articulate with?
    • head of radius with the radioulnar notch of ulna
    • uniaxial, pivot, pronation ROM 80, supination ROM 90
    • transverse plane, vertical axis
    • ulna does not move, its stationary
  4. What does the mid radioulnar jt articulate with?
    • between radius and ulna
    • transverse plane, vertical axis
  5. What does the distal radioulnar jt articulate with?
    • head of ulna with ulnar notch of radius
    • uniaxial, pivot
    • transverse plane, vertical axis
  6. What is located at the top of the glenoid fossa?
    • supraglenoid tubercle
    • attachment for long head biceps
  7. What is located on the bottom of the glenoid fossa?
    • infraglenoid tubercle
    • attachment for long head triceps
  8. What is the attachment for the short head biceps?
    coracoid
  9. The trochlea of the humerus articulates with what?
    ulna
  10. The capitulum of the humerus articulates with what?
    • head of radius
    • makes the humeroradial jt
  11. The medial epicondyle of the humerus is the attachment for what m.?
    • pronator teres
    • above the trochlea
  12. The lateral epicondyle is the attachment for what mm.?
    • anconeus and supinator
    • above the capitulum
  13. What is the attachment for the brachioradialis?
    • lateral supracondylar ridge
    • above lateral epicondyle
  14. What does the olecranon fossa of the humerus articulate with?
    olecranon process of the ulna
  15. What is the attachment on the ulna for the triceps?
    olecranon process
  16. What does the trochlear (semilunar) notch of the ulna articulate with?
    • trochlea of humerus
    • makes humeroulnar jt
  17. Where is the coronoid process of the ulna located and what m. does it attach?
    • below the trochlear notch
    • attaches the brachialis
  18. What does the radial notch of the ulna articulate with?
    • head of radius
    • makes proximal radioulnar jt
  19. What m. does the ulnar tuberosity of the ulna attach?
    brachialis
  20. What is the attachment for the biceps on the radius?
    radial tuberosity
  21. Where is the attachment on the radius for the brachioradialis?
    styloid process
  22. What is the ligament of the humeroulnar jt?
    medial (ulnar) collateral- creates medial stability

    • medial epicondyle to coronoid and olecranon processes of ulna
    • triangular shaped
  23. What is the ligament of the humeroradial jt?
    lateral (radial) collateral- provides lateral stability

    • lateral epicondyle of humerus to annular ligament and lateral ulna
    • triangular shaped
  24. What is the ligament of the proximal radioulnar jt?
    annular ligament

    encompasses radial head and holds it against the ulna
  25. What ligament keeps the radius and ulna together, and serves as a m. attachment (starts at mid radioulnar jt, ends at distal radioulnar jt)?
    interosseus ligament (membrane)
  26. What are the radioulnar articulations held together by?
    interossues membrane and annular ligament
  27. What m. prevents the annular ligament from getting pinched in the olecranon fossa, and stabilizes in pro/supination?
    anconeus

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