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    Human Anatomy

    Illustration of rotator cuff

    Picture of the Rotator Cuff

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    The rotator cuff is a group of tendons and muscles in the shoulder, connecting the upper arm (humerus) to the shoulder blade (scapula). The rotator cuff tendons provide stability to the shoulder; the muscles allow the shoulder to rotate.

    The muscles in the rotator cuff include:

    • Teres minor
    • Infraspinatus
    • Supraspinatus
    • Subscapularis

    Each muscle of the rotator cuff inserts at the scapula, and has a tendon that attaches to the humerus. Together, the tendons and other tissues form a cuff around the humerus.

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