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15 Cards in this Set

  • Front
  • Back
the only joint that connects the upper extremity to the trunk

- 3 degrees of movement
- strong ligamentous attachments
-links medial end of clavicle with sternum and cartilage of 1st rib
sternoclavicular joint
what are the 3 degrees of movement for the sternoclavicular joint
1. elevation/ depression
2. protraction/ retraction
3. axial rotation
what are the 3 degrees of movement for the acromioclavicular joint?
1. upward/ downward rotation
2. horizontal plane rotational adjustments
3. sagittal plane rotational adjustments
what are the 3 degrees of movement for the scapulothoracic joint?
1. elevation/ depression
2. protraction/ retraction
3. upward/ downward rotation
this is an integral part of raising arm above head..

inferior angle of scapula lifts up and superior angle tilts down
scapular upward rotation
what can be found in the subacromial space?
supraspinatus and tendon

subacomial bursa

long head of biceps

part of superior capsule
how many degrees of abduction are available at a healthy GH joint?

scapula upward rotation?
120 GH

60 scapula upward rotation
what is a scapulothoracic/ scapulohumeral rhythm?
2 : 1 ration for every 3 degrees of shoulder abduction..

2 degrees of GH abduction
1 degree of scapula upward rotation
most of the muscles of the shoulder cavity fall into what 2 categories?
1. proximal stabilizers
2. distal mobilizers
what are the muscles of the rotator cuff and their functions:
Supraspinatus: stabilize and abduct humerus

infraspinatus: external rotation

teres minor: external rotation and adduction humerus

subscapularis: internal rotation
what is the function of the rotator cuff muscles?
dynamic stabilization of GH joint
what 3 actions of the shoulder are needed for eating (hand to mouth)
horizontal adduction
internal rotation
abduction
what 3 actions of the shoulder needed for combing hair/ reaching hand
external rotation
horizontal abduction
abduction
what 3 action of shoulder are needed for tucking in a shirt?
internal rotation
horizontal adduction
abduction
what 2 motions are needed for reaching for something on a shelf?
forward flexion
rotation