How Many Rotator Cuffs Do You Have?

You have one rotator cuff in each shoulder, so there is a total of two rotator cuffs. Each rotator cuff consists of four muscles and their tendons, which work together to stabilize and support shoulder movement.

The 4 Muscles That Make Up Each Rotator Cuff

• Supraspinatus – Assists in lifting the arm away from the body.
• Infraspinatus – Helps rotate the arm outward.
• Teres Minor – Works with the infraspinatus to rotate the arm externally.
  

Subscapularis – Rotates the arm inward and provides shoulder stability.

Together, these muscles and tendons enable a wide range of shoulder movements and provide essential stability to the joint.