Muscles of shoulder and arm

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Author:
Anonymous
ID:
244291
Filename:
Muscles of shoulder and arm
Updated:
2013-11-01 04:03:51
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muscles shoulder arm actions insertions origins
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Description:
the origins,actions and actions of the arm muscles
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  1. Origin of Trapezius
    Occipital bone;Vertebrae
  2. Insertion of Trapezius
    Clavicle;acromion process and spine of scapula
  3. Action of Trapezius
    Extends and abducts head;rotates and adducts scapula;fixes scapula
  4. Origin of Deltoid
    clavicle;acromion process and spine of scapula
  5. insertion of Deltoid
    deltoid tuberosity of humerus
  6. action of deltoid
    abducts,flexes,extends and rotates arm
  7. origin of pectoralis major
    clavicle;sternum;costal cartilage
  8. insertion of pectoralis major
    greater tubercle of humerus
  9. action of pectoralis major
    flexes,adducts, and rotates arm
  10. origin of pectoralis minor
    ribs
  11. insertion of pectoralis minor
    coracoid process of scapula
  12. action of pectoralis minor
    depresses and rotates scapula
  13. origin of latissimus dorsi
    vertebrae;illiac crest of coxa;ribs
  14. insertion of latissimus dorsi
    intertubercular sulcus of humerus
  15. action of latissimus dorsi
    extends,adducts, and rotates arm
  16. origin of supraspinatus
    supraspinous fossa of scapula
  17. insertion of supraspinatus
    greater tubercle of humerus
  18. action of supraspinatus
    abducts arm, tendon stabilizes shoulder as part of the rotator cuff
  19. origin of infraspinatus
    infraspinous fossa of scapula
  20. insertion of infraspinatus
    greater tubercle of humerus
  21. action of infraspinatus
    rotates arm;tendon stabilizes shoulder as part of the rotator cuff
  22. origin of subcapularis
    subscapular fossa of scapula
  23. insertion of subscapularis
    lesser tubercle of humerus
  24. action of subscapularis
    rotates arm;tendon stabilizes shoulder as part of the rotator cuff
  25. origin of teres minor
    lateral border of scapula
  26. insertion of teres minor
    greater tubercle of humerus
  27. action of teres minor
    rotates arm;tendon stabilizes shoulder as part of the rotator cuff
  28. origin of teres major
    lateral border of scapula
  29. insertion of teres major
    lesser tubercle of humerus
  30. action of teres major
    extends,adducts, and rotates arm
  31. origin of long head of biceps brachii
    glenoid cavity of scapula
  32. origin of short head of biceps brachii
    coracoid process of scapula
  33. insertion of biceps brachii
    radial tuberosity of radius
  34. action of biceps brachii
    flexes arm and forearm;supinates hand
  35. origin of triceps brachii
    scapula;humerus
  36. insertion of triceps brachii
    olecranon process of ulna
  37. action of triceps brachii
    extends arm and forarm
  38. origin of coracobrachialis
    coracoid process of scapula
  39. insertion of coracobrachialis
    humerus
  40. action of coracobrachialis
    flexes and adducts arm
  41. origin of brachialis
    humerus
  42. insertion of brachialis
    coronoid process of ulna
  43. action of brachialis
    flexes forearm
  44. origin of brachioradialis
    humerus
  45. insertion of brachioradialis
    styloid process of radius
  46. action of brachioradialis
    flexes forarm

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