What are the rotator cuff muscles and what are their actions?

Share on Pinterest Four muscles make up the rotator cuff: the subscapularis, teres minor, supraspinatus, and infraspinatus. Together they assist in stabilizing the shoulder joint as well as in performing various arm movements. Four muscles and their attached tendons make up the rotator cuff.

What is the main function of the rotator cuff quizlet?

As one of the four muscles of the rotator cuff, the main function is to externally rotate the humerus and stabilize the shoulder joint. A slim, narrow muscle within the rotator cuff, located in the shoulder. It is involved in the external rotation of the shoulder joint.

Why is it called the rotator cuff?

Three of the muscles are located on the top and back of your shoulder. The other muscle is located in the front of your shoulder. This complex is called a “cuff” because the tendons join together form a hood surrounding the joint. These muscles are responsible for normal shoulder strength and stability.

What are the 4 rotator cuff muscles quizlet?

Supraspinatus, infraspinatus,teres minor and subscapularis are known as the rotator cuff muscles. They encompass and stabilize the glenohumeral joint.

What is the function of teres major?

The main function of teres major is to produce the movements of the humerus at the glenohumeral joint; it pulls the anterior surface of the humerus medially towards the trunk (internal rotation). Furthermore, it can extend the arm from the flexed position.

Where does rotator cuff pain hurt?

The rotator cuff is a group of muscles and tendons that surround the shoulder joint, keeping the head of your upper arm bone firmly within the shallow socket of the shoulder. A rotator cuff injury can cause a dull ache in the shoulder, which often worsens with use of the arm away from the body.

How to strengthen the muscles of the rotator cuff?

Take a resistance band and attach it to something sturdy above your shoulder height.

Lie on your stomach on a bed or table. Put an arm at your shoulder level and bend your elbow at 90˚.

Lie down on a side,bend your elbow at 90˚,and rest it on a side.

Stand in an open door and spread your arms to each of its sides.

What is the best exercise for rotator cuff?

Doorway stretch.

Side-lying external rotation.

High-to-low rows.

Reverse fly.

Lawn mower pull.

What are the muscles associated with the rotator cuff?

Supraspinatus.

Infraspinatus.

Teres Minor.

Subscapularis.