Kinese Chapter 6

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  1. The ulna is much larger ___ than the raduis

    ____ and ____ serve as proximal attachments for the mms that flex and extend the elbow

    And the Ulna dna Radius serve as distal attachments for the same ___
    • proximally
    • scapula and humerus
    • MMs
  2. ____ ____ and ____ serve as proximal attachments for mms that pronate and supinate the radioulnar joints

    Distal attachments of the radioulnar joint mms are located on the ___
    scapula radius and ulna

  3. what are four bony landmarks of the radioulnar joint????
    • CROM!!!!
    • Coronoid Process Radial Tuberosity Olecranon Process and Medial Condyliod Ridge
  4. What are the 3 key bony landmarks for the wrist and hand???
    • Medial epicondyle lateral epicondyle
    • lateral supracondylar ridge
  5. What kind of joint is the elbow and what kind of motions does it allow?

    what are the interrelated joints??
    The elbow is a Hinge Joint and it allows flex and extend

    humeroulnar and radiohumeral joints!
  6. Elbow motions are movement between articulat surfaces of humerus and ___?

    Specifically ___ trochlear fitting into ___ trochlear notch

    humeral and ulna
  7. The radial head had ___ contact with capitulum of humerus?

    As elbow reaches full extension the olecranon ___ is received by the olecranon... and this increases stability

    process received by fossa
  8. As elbow flexes ___ degrees or more there is more side to side ___

    Stability in flexion is dependent on ___ and ___
    20 laxity

    Ulnar collateral ligament and Radial '' ''
  9. UCL prevents injury from extreme ____
    throwing sports

    RCl provides ___ stability and is rare injury

    ____ ligament provides a ___ effect around radial head for stabilty


    Annular and sling effect
  10. Elbow moves from __ degrees of extension to __ degrees of flexion
    0 to 145-150
  11. what type of joint is the radioulnar joint?

    what ligament maintains radial head in its joint??
    pivot joint and annular ligament
  12. radial ___ rotates around proximal ___?

    distal ___ rotates around ___ ulna?
    Radial head and proximal ulna

    distal radius and distal ulna
  13. Radioulnar Joint can supinate __ degrees from neutral as well as __ degrees pronation
    • sup is 80-90
    • pro is 70-90
  14. Where is the radioulnar joint located?

    there is substantial what here?
    Between the shafts of the radius and ulna held together by proximal and distal articulations... syndesmosis cause its and interroseous membrane

    rotary motion between the bones
  15. How is there synergy between the GH, elbow, and radioulnar joints???
    GH and elbow mms contract and assist in effectiveness of radioulnar movements

    Ex: tightening screw is radioulnar sup but we ext rotate gh and elbow to aid this movement
  16. Def of Pro and Sup??
    Pro is internal rotary movement of radius resulting in palm up to palm down position

    and OPPO
  17. what are the elbow flexors???
    • Biceps brachii
    • brachialis
    • brachioradialis
  18. what are the elbow extensors??
    Triceps brachii

    assistance from the aconeus
  19. What are the radioulnar pronators???
    pronator teres

    pronator quadratus

  20. what are the radioulnar supinators?
    biceps brachii

    supinator mm

  21. tennis elbow is ___ epicondylitis and usually involves extensor digitorum mm near its origin on lateral epicondyle

    Golfers is the opposite and associated with medial wrist flexor and pronator group
    -both r mms that cross elbow but act on wrist/hand
    tennis is lateral
  22. The carrying/cubital angle is arm ext. at anatomical and the ___ axes of the upper arm and forearm form a lateral/___ angle at the elbow joint
    longitudinal axes

    valgus angle
  23. What does valgus mean?
    Since the ___ extends more distally than the capitulum the axis of flexion and extension of the elbow is not fully ___ to the shaft of the humerus...
    what does the forearm do in relation to humerus when it is supinated when elbow extended?
    • valgus means away from the midline
    • trochlea and perpendicular
    • the forearm deviates laterally
  24. why do females have a more pronounced carrying angle?
    what are the normal angles for men and women?
    • females have less broad shoulders
    • men is 5 and women are 10 to 15 degrees
  25. where does the carrying angle allow the elbow to fit closely into?
    what is the purpose of the carrying angle?
    • the elbow firts into the depression at the waist immediately superior to the iliac crest
    • serves to keep held object away from the body
  26. what is a nursemaid elbow/pulled elbow?
    what causes it? pain complaints? where is pain? age range? there is usually a tear in the attachement of what?
    • dislocation of the elbow/subluxation of the radial head. caused by tugging of pronated arm or swinging child. little complaint of pain and if there is: in distal forearm.
    • 1 to 3 and tear in attach. of annular ligament
  27. what are the anterior mms and what actions do they primarily perform?
    • the perfom pro. and flex
    • 2ps and BBB
    • pronator teres pronator quadratus
    • brachialis biceps brachi brachioradialis
  28. what are the posterior mms and what actions are they involved with?
    • they are concerned with extension and supination
    • "SAT" supinator aconeous triceps brachi
  29. what are the actions of the biceps brachii and the O and I for it??
    • flex and suppination
    • Long Head O: supraglenoid tubercle above superior lip of glenoid fossa
    • Short Head O: coracoid process of scap and upper lip glenoid fossa in conjunction with prox attach of coracobrachialis
    • I: tuberosity of radius and bicipital aponeurosis
  30. what are the actions and the O and I of the brachialis?
    • True flexion!
    • O: distal half anterior humerus
    • I: coronoid process of ulna
  31. what are the actions of the Brachioradialis? what are the O and I? it is a powerhouse most effective when?
    It is part of what wad with what other two mms?
    • Flex of elbow sup from pro to neutral and pro from sup to neutral... best in Neutral!
    • O: lateral supracondylar ridge of humerus
    • I: styloid process of radius
    • Mobile wad of henry.. The extensor carpi radialis brevis and longus
  32. what are the actions of the triceps brachii and what is the O and I for it?
    • Extension!
    • O: upper posterior humerus
    • I: olecranon process of ulna
  33. What are the acitons of the aconeus and what are the O and I for it as well?
    • Elbow extension
    • O: Posterior lateral condyle of humerus
    • I: posterior upper ulna and olecranon
  34. what are the agonists of elbow flexion?? and Extension??
    flex: BBB brachialis brachioradialis and b. brachii

    Ext: triceps brachii and aconeus?
  35. what are the agonists involved in radioulnar pronation?? Supination??
    Pro: pronator teres and quadratus, brachioradialis

    Sup: supinator brachioradialis B. Brachii
  36. where is the cubital fossa located? what line is the base defined by? what structures pass through it?
    triangular space bordered by brachioradialis laterally and pronator teres medially. An imaginary line that runs bw epicondyles of humerus from its lateral to medial borders. the biceps tendon, brachial artery, median and musculotaneous nerve pass through this!
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Kinese Chapter 6
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