Rotator cuff/Definition
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The musculotendinous sheath formed by the supraspinatus, infraspinatus, subscapularis, and teres minor muscles. These help stabilize the head of the humerus in the glenoid fossa and allow for rotation of the shoulder joint about its longitudinal axis.
This definition is at least in part based on: Anonymous (2023), Rotator cuff (English). Medical Subject Headings. U.S. National Library of Medicine.