The Powerful Abductor Muscle of the Upper Arm is The

Question

The powerful abductor muscle of the upper arm is the
A) supraspinatus.
B) subscapularis.
C) deltoid.
D) coracobrachialis.
E) teres major.

Accepted Answer

The deltoid muscle is the primary abductor of the upper arm, responsible for lifting the arm away from the body.