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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
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what are the 3 degrees of movement for the sternoclavicular joint
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1. elevation/ depression
2. protraction/ retraction 3. axial rotation |
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what are the 3 degrees of movement for the acromioclavicular joint?
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1. upward/ downward rotation
2. horizontal plane rotational adjustments 3. sagittal plane rotational adjustments |
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what are the 3 degrees of movement for the scapulothoracic joint?
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1. elevation/ depression
2. protraction/ retraction 3. upward/ downward rotation |
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this is an integral part of raising arm above head..
inferior angle of scapula lifts up and superior angle tilts down |
scapular upward rotation
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what can be found in the subacromial space?
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supraspinatus and tendon
subacomial bursa long head of biceps part of superior capsule |
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how many degrees of abduction are available at a healthy GH joint?
scapula upward rotation? |
120 GH
60 scapula upward rotation |
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what is a scapulothoracic/ scapulohumeral rhythm?
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2 : 1 ration for every 3 degrees of shoulder abduction..
2 degrees of GH abduction 1 degree of scapula upward rotation |
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most of the muscles of the shoulder cavity fall into what 2 categories?
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1. proximal stabilizers
2. distal mobilizers |
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what are the muscles of the rotator cuff and their functions:
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Supraspinatus: stabilize and abduct humerus
infraspinatus: external rotation teres minor: external rotation and adduction humerus subscapularis: internal rotation |
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what is the function of the rotator cuff muscles?
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dynamic stabilization of GH joint
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what 3 actions of the shoulder are needed for eating (hand to mouth)
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horizontal adduction
internal rotation abduction |
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what 3 actions of the shoulder needed for combing hair/ reaching hand
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external rotation
horizontal abduction abduction |
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what 3 action of shoulder are needed for tucking in a shirt?
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internal rotation
horizontal adduction abduction |
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what 2 motions are needed for reaching for something on a shelf?
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forward flexion
rotation |