The rotator cuff is a group of muscles and tendons that surrounds your shoulder. It holds your humerus (upper arm bone) in place in its socket in your scapula (shoulder blade). Rotator cuff injuries are common, especially among athletes who play contact sports.

2023年7月21日 · Your rotator cuff is made up of four muscles: the supraspinatus, infraspinatus, teres minor, and subscapularis. The muscles start on the shoulder blade and join as tendons to form a thick covering at the top of the humerus (the bone in the upper arm).

The Rotator Cuff (RC) is a common name for the group of 4 distinct muscles and their tendons, which provide strength and stability during motion to the shoulder complex. They are also referred to as the SITS muscle, with reference to the first letter of their names ( Supraspinatus , Infraspinatus , Teres minor , and Subscapularis , respectively).

2023年10月30日 · In the human body, the rotator cuff is a functional anatomical unit located in the upper extremity. Its function is related to the glenohumeral joint, where the muscles of the cuff function both as the executors of the movements of the joint and the stabilization of …

2019年11月26日 · The rotator cuff is a group of four muscles that hold your upper arm in place in your shoulder. It helps you make all the motions of your arm and shoulder. The head of your upper arm bone,...

The rotator cuff (SITS muscles) is a group of muscles and their tendons that act to stabilize the human shoulder and allow for its extensive range of motion. Of the seven scapulohumeral muscles, four make up the rotator cuff. The four muscles are: subscapularis muscle.

2023年12月12日 · Your rotator cuff is made up of muscles and tendons that keep the ball (head) of your upper arm bone (humerus) in your shoulder socket. It also helps you raise and rotate your arm. It’s a ...

2023年3月27日 · The rotator cuff is a group of muscles in the shoulder that allow a wide range of movement while maintaining the stability of the glenohumeral joint (see Image. Rotator Cuff Muscles). The rotator cuff includes the following muscles:

2022年1月10日 · The rotator cuff comprises four muscles: the supraspinatus, the infraspinatus, the teres minor, and the subscapularis. These muscles work together to control arm movement and...

2025年1月28日 · The rotator cuff includes four muscles collectively referred to as the SITS muscles: supraspinatus, infraspinatus, teres minor, and subscapularis. Origin: Supraspinous fossa of the scapula. Insertion: Superior facet of the greater tubercle of the humerus.