All of the Following Muscles are Involved with Adduction of the Shoulder

Question

All of the following muscles are involved with adduction of the shoulder EXCEPT ________.
A) supraspinatus
B) pectoralis major
C) teres major
D) coracobrachialis

Accepted Answer

The supraspinatus muscle is mainly involved with abduction of the shoulder, not adduction. The other three muscles listed (pectoralis major, teres major, and coracobrachialis) are all involved with adduction of the shoulder.