Rotator Cuff Muscles
Consist of four muscles The Supraspinatus assists the deltoid with abduction of the shoulder to move away from the centerline of your body and it helps lift your arm. It is the only muscle of the group not involved in shoulder rotation. Infraspinatus is the main muscle responsible for lateral rotate and extend your shoulder. It’s a thick muscle. Teres minor is a small muscles, narrow muscle on the back of your shoulder blade. It is between the infraspinatus and teres majors.