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23 Cards in this Set
- Front
- Back
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What are the muscles in the rotator cuff?
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Supraspinatus, Infraspinatus, Teres Minor, subscapularis
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What is the musculotendinous junction of the supraspinatus?
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Where the tendon and the muscle connect
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Where is the origin of the supraspinatus?
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the supraspinous fossa
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What is the insertion of the supraspinatus?
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Greater tubercle of the humerus
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What is the action of the supraspinatus?
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initiate abduction of the shoulder(glenohumeral joint) stabilize head of the humerus in the glenoid cavity
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What is the origin of teres minor?
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upper lateral border of the scapula
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What is the insertion for teres minor?
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Greater tubercle of the humerus
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What is the action of teres minor?
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lateral rotation of the shoulder g/h joint
adduct the shoulder g/h joint extend the shoulder g/h joint horizontally abduct the shoulder g/h joint stabilize the of the humerus in the glenoid cavity |
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What is the origin of subscapularis?
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subscapular fossa
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The insertion of subscapularis?
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lesser tubercle of the humerus
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What is the action of subscapularis?
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medially rotate the shoulder g/h joint
stabilize the head of the humerus in the glenoid cavity |
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What is the origin of rhomboid minor?
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spinous process of C-7 to T-1
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What is the insertion of the rhomboid minor?
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medial border of the scapula at the root of the spine of the scapula
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What is the action of the rhomboid minor?
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retraction, elevation, downward rotation
of the scapular at the scapulothoracic joint |
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What is the origin of rhomboid major?
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spinous process of T2-T-5
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What is the insertion of rhomboid major?
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medial border of the scapula below the spine
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What is the action of rhomboid major?
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Same as minor, adduct the scapula s/t joint
elevate the scapula s/t joint downwardly rotate the scapula s/t joint |
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What is the origin of levator scapula?
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transverse process C1-C-5
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What is the insertion of levator scapula?
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medial border of the scapula above the spine of the scapula
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What is the action of levator scapula?
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elevate the scapula, downward rotation
and the 2ndary action; lateral flexion of the neck |
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What is the origin of subclavius?
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the 1st rib
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Where is the insertion of subclavius?
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underside of the clavicle
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What is the action of subclavius?
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depress the clavicle and rotate back to anatomical position
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