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 that combine at the shoulder. The rotator cuff stabilizes this joint and elevates/rotates the arm.

As a group, the rotator cuff muscles are responsible for stabilizing the shoulder joint, by providing the "fine tuning" movements of the head of the humerus within the glenoid fossa. They are deeper muscles and are very active in the neuromuscular control of the shoulder complex during upper extremity movements.

2019年11月26日 · The rotator cuff is made up of four muscles that hold your shoulder in place. It helps you perform all the movements of your upper arm and shoulder.

2023年12月12日 · What Is a Rotator Cuff? 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.

These muscles arise from the scapula and connect to the head of the humerus, forming a cuff at the shoulder joint (hence the name rotator cuff). They hold the head of the humerus in the small and shallow glenoid fossa of the scapula.

2023年10月30日 · The Rotator cuff consists of a group of 4 important shoulder muscles. Learn all about origins, insertions, functions and common injuries here.

2023年3月27日 · During arm movements, the rotator muscles contract and prevent the sliding of the head of the humerus, allowing full range of motion and providing stability. Additionally, rotator cuff muscles help in the mobility of the shoulder joint by …

2025年1月28日 · These components work together to stabilize and support the shoulder joint while enabling a wide range of movements. 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.

2024年1月27日 · These muscles are primarily responsible for stabilizing the shoulder and helping with all its movements. The shoulder is a ball and socket joint. It’s called the glenohumeral joint because it is where the head of the humerus or the ‘ball’ articulates with the scapula’s glenoid cavity or the ‘socket.’.