Humerus Rotation Muscles: Infraspinatus, Teres Minor & Subscapularis

The three muscles that rotate the humerus are:

* Infraspinatus: This muscle externally rotates the humerus and is located on the back of the shoulder.

* Teres minor: This muscle also externally rotates the humerus and is located on the back of the shoulder, inferior to the infraspinatus.

* Subscapularis: This muscle internally rotates the humerus and is located on the front of the shoulder.