Final answer:
The rotator cuff is comprised of four muscles: subscapularis, supraspinatus, infraspinatus, and teres minor, and is essential for shoulder stability and arm movement.
Step-by-step explanation:
The rotator cuff is a group of four muscles: the subscapularis, supraspinatus, infraspinatus, and teres minor. These muscles and their tendons form a cuff around the shoulder joint. The rotator cuff is crucial for stabilizing the shoulder and allowing various movements of the arm. In athletes, especially baseball pitchers, the rotator cuff can become stressed from repetitive motion, leading to inflammation, pinching, and even tears that may require surgery.
The rotator cuff is a group of four muscles that play a crucial role in the stability and movement of the shoulder joint. These muscles are the supraspinatus, infraspinatus, teres minor, and subscapularis. Together, they form a cuff around the shoulder joint, connecting the shoulder blade to the upper arm bone.
The rotator cuff muscles work in harmony to facilitate various shoulder movements, including rotation and abduction. These muscles are essential for maintaining shoulder function and stability, and injuries or tears to the rotator cuff can significantly impact the range of motion and strength of the shoulder.