Which of the Following Controls Abduction at the Shoulder

Question

Which of the following controls abduction at the shoulder?
A) supraspinatus
B) subscapularis
C) teres major
D) infraspinatus
E) teres minor

Accepted Answer

The supraspinatus muscle is responsible for initiating and assisting in the first 15 degrees of abduction at the shoulder. It is part of the rotator cuff and is located on the posterior aspect of the shoulder blade (scapula). The other muscles listed may contribute to shoulder movement in different directions, but they do not specifically control abduction at the shoulder.