Question

Are the muscles of pectoralis major adductors or abductors? explain.

Answer 1

They are Adductors. An adductor is any muscle used to pull a body part away from the midline of the body. For example, the abductor muscles of the legs spread the legs away from the midline and away from one another.

Answer 2

I believe the muscles of pectoralis major acts as an adductors. Adductor muscles are muscles that draw a part of the body toward its median line or toward the axis of an extremity, especially the powerful muscles of the human thigh; adductor longus, adductor brevis, and adductor magnus. The pectoralis major is a broad, fan-shaped muscle that originates from the medial clavicle, sternum, and costal cartilages of the first through six ribs and the external oblique muscular aponeurosis. It serves as an adductor, medial rotator, and extender of the arm.