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13 Cards in this Set
- Front
- Back
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supraspinatus Origin
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scapula (supraspinatus fossa)
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supraspinatus Insertion
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humerus (greater tubercle)
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supraspinatus Action
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hold head of humerus stable in glenoid cavity - adduction of humerus (30 degrees)
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infraspinatus Origin
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scapula (infraspinatus fossa)
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infraspinatus Insertion
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humerus (greater tubercle)
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infraspinatus Action
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hold head of humerus stable in glenoid cavity - lateral rotation & adduction of humerus
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teres minor Origin
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scapula (axillary border)
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teres minor Insertion
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humerus (greater tubercle)
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teres minor Action
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hold head of humerus stable in glenoid cavity - lateral rotation of humerus
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subscapularis Origin
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scapula (subscapular fossa)
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subscapularis Insertion
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humerus (lesser tubercle)
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subscapularis Action
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hold head of humerus stable in glenoid cavity - medial rotation
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collectively they are referred to as the rotator cuff muscles and are a common site for shoulder injury
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supraspinatus - infraspinatus - teres minor - subscapularis
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