rotator cuff of shoulder

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ro·ta·tor cuff of shoul·der

the anterior, superior, and posterior aspects of the capsule of the shoulder joint reinforced by the tendons of insertion of the supraspinatus, infraspinatus, teres minor, and subscapularis (SITS) muscles.

ro·ta·tor cuff of shoul·der

(rō'tā-tŏr kŭf shōl'dĕr)
The upper half of the capsule of the shoulder joint reinforced by the tendons of insertion of the supraspinatus, infraspinatus, teres minor, and subscapularis muscles.