Damage to the pectoralis major would interfere with a person's ability to
A)extend the forearm.
B)abduct the humerus.
C)adduct the humerus.
D)elevate the scapula.
E)rotate the elbow.

Question

Quizplus · Accepted Answer

The pectoralis major muscle is responsible for adduction of the humerus, which involves bringing the arm toward the body's midline. Damage to this muscle would interfere with this movement. It would not affect the ability to extend the forearm, rotate the elbow, elevate the scapula, or abduct the humerus.

Damage to the Pectoralis Major Would Interfere with a Person's