shoulder

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Author:
jpowell22
ID:
149094
Filename:
shoulder
Updated:
2012-04-24 21:10:44
Tags:
functional anatomy
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Description:
shoulder girdle
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  1. What does the shoulder complex consist of?
    • scapula
    • clavicle
    • sternum
    • humerus
    • rib cage
  2. What joints are included in the shoulder complex?
    • sternoclavicular joint
    • acromioclavicular joint
    • glenohumeral joint
    • scapulothoracic articulation
  3. What is included in the shoulder girdle?
    • scapula
    • clavicle
    • sternum
  4. What is included in the shoulder jt?
    • scapula
    • humerus
  5. Which of the shoulder complex joints is not technically a joint and why?
    scapulothoracic articulation

    not directly attached, but does provide motion/mvmt and flexibility
  6. How is the scapula attached to the trunk?
    by ligaments to clavicle and muscles to trunk
  7. Where is the scapula located?
    • between ribs 2 and 7
    • spine of scapula at T3 or T4
  8. What landmark on the scapula is the attachment for the levator scapula?
    superior angle

    top pointy part
  9. What is the point that determines scapular rotation?
    inferior angle

    bottom pointy part
  10. What is the landmark of the scapula for the rhomboid and serratus ant. attachment?
    vertebral border

    side closest to vertebrae
  11. What landmark is on the side opposite of the vertebrae (more lateral)?
    axillary border
  12. What is the scapula landmark for the middle and lower trapezius attachment?
    spine

    pokey out part on back
  13. What is the pectoralis major (coracobrachialis) attachment?
    coracoid process

    behind/below the scapula; smaller than the acromion
  14. What is the upper trapezius attachement?
    acromion process

    biggest projection off spine
  15. What does the humerus articulate with?
    glenoid fossa

    divot
  16. What connects the upper extremity to the axial skeleton at the sternoclavicular jt, and connects to scapula at the acromioclavical jt?
    clavicle


    sternal end, acromial end, body
  17. What is the attachment for the clavicle and attaches to costal cartilages of ribs?
    sternum

    manubrium, body, xiphoid process
  18. What joint is easily traumatized, and what type of joint is it?
    acromioclavicular jt (AC jt)

    synovial, plane shaped, gliding motion occurs at all planes (nonaxial)
  19. Where is the acromioclavicular joint located?
    lateral end of clavicle joining with the acromion process
  20. What types of gliding motion does the acromioclavicular jt have?
    upward and downward rotation
  21. What are the 3 ligaments of the acromioclavicular jt?
    • acromioclavicular ligament
    • coracoclavicular ligament
    • coracoacromial ligament
  22. What AC ligament prevents posterior dislocation of clavicle?
    acromioclavicular ligament
  23. What is the strongest AC ligament the binds the clavicle to the scapula and gives stability?
    coracoclavicular ligament
  24. What are the 2 parts of the coracoclavicular ligaments?
    conoid - medial

    trapezoid - lateral
  25. What AC ligament provides a roof over the head of the humerus?
    coracoacromial ligament
  26. What are the available motions at the shoulder girdle?
    • elevation/depression
    • protraction/retraction
    • upward/downward rotation (angular motion)
    • scapular tilt (hyperextension)
  27. What is the only direct attachment of the shoulder girdle to the trunk?
    sternoclavicular jt

    synovial, plane, gliding
  28. What is between the sternoclavicular jt that acts as a shock absorber and prevents dislocation?
    articular disc
  29. What are the 5 mm. of the shoulder girdle?
    • trapezius
    • levator scapulae
    • rhomboids
    • serratus anterior
    • pectoralis minor
  30. What are the articular surfaces of the glenohumeral joint?
    humeral head articulates with glenoid fossa of scapula
  31. What are the motions of the GH joint?
    • flex/ext/hyperextension
    • abd/add
    • IR/ER
    • horizontal abd/add
  32. What fossa is on the anterior portion of the scapula and is the attachment for the subscapularis m.?
    subscapular fossa
  33. What foss of the scapula is posterior, below the spine, and is the attachment for the infraspinatus m.?
    infraspinous fossa
  34. What fossa of the scapula is posterior, above the spine, and the attachment for the supraspinous m.?
    supraspinous fossa
  35. The axillary border of the scapula is the attachment for what mm.?
    teres major and minor
  36. The acromion process of the scapula is the attachment for what m.?
    middle deltoid
  37. What is the fibrocartilaginous ring that deepens the glenoid fossa?
    labrum
  38. How do you tell if a humerus is ant/post?
    • the hole on the distal end goes in the back
    • rounded head goes into fossa
  39. On the humerus, what separates the head from the tubercles?
    anatomical neck
  40. Where on the humerus is the surgical neck?
    below the tubercles
  41. Where is the greater tubercle of the humerus?
    lateral to the head

    attachment for supraspinous, infraspinous, teres minor
  42. Where is the lesser tubercle of the humerus located?
    • anteriorly
    • attachment for subscapularis
  43. What is another name for bicipital groove and where is it located?
    • intertubercular groove
    • inbetween greater and lesser tubercles

    longhead biceps, medial latissimus dorsi, teres minor, lateral pectoralis major
  44. What are the 2 ligaments of the GH joint?
    • coracohumeral
    • glenoid labrum
  45. What is the GH ligament that attaches from the coracoid to medial side of the greater tubercle of the humerus and helps strengthen the jt capsule?
    coracohumeral ligament
  46. Where is the glenoid labrum ligament?
    • fibrous tissue surrounding glenoid fossa
    • deepens articular cavity
  47. What are the 2 bursae of the GH joint?
    • subdeltoid
    • subacromial
  48. Where is the subdeltoid bursa located?
    between the deltoid and jt capsule
  49. Where is the subacromial bursa located?
    below acromion and coracoacromial ligament and between the jt capsule
  50. What are the mm. of the rotator cuff?
    • subscapular -lesser tubercule
    • infraspinous -greater tubercle
    • teres minor -greater tubercle
    • supraspinous -greater tubercle

    SITS
  51. What is the scapulohumeral rhythm?
    first 30 degrees of shoulder jt mvmt is pure GH mvmt

    *if abducting, humeral head must depress, must laterally rotate to achieve full abduction
  52. What do the deltoid and rotator cuff work together to do?
    abduct fully

    rotator cuff - 3 mm. - subscapular, infraspinous, teres minor

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