What is the definition or description of: rotator cuff?

4muscles: A bandlike structure encircling and supporting the shoulder joint, formed by four muscles attached to and merging with the joint capsule. Teres minor muscle. Infraspinatus muscle, supraspinatus muscle subscapularis muscle, .

Cuff: The rotator cuff is a group of four muscles that wrap around the ball of the ball and socket joint f the shoulder. The cuff muscles initiate the movements of internal and external rotation as well as lifting your arm from your side (abduction).

4 muscles.: It is a small group of 4 muscles that originate on the shoulder blade, and connect on the upper arm bone.