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Shoulder joint muscles
Other Terms: Shoulder
The shoulder joint is probably the least stable yet most mobile joint of the body. In accordance with this, the muscles surrounding this important joint have a variety of shapes and functions. They range from small rounded muscles to large, extensive muscular sheets. Some of these muscles produce very minimal motion at the joint, but perform critical roles in supporting and stabilizing the joint, helping to prevent dislocation. Other muscles in this group are prime movers of the joint and produce the largest ranges of motion of any muscle in the entire body. They form three distinct functional groups – the rotator cuff muscles, the intertubercular groove muscles, and the large shoulder cap.