The function of the pectoralis major is to:
A)flex the arm
B)adduct the arm
C)both of these
D)neither of these

Question

Quizplus · Accepted Answer

The pectoralis major muscle is responsible for both flexing and adducting the arm. It is a large muscle that spans across the chest and upper arm, and helps to move the arm in a variety of directions. When the muscle contracts, it pulls the upper arm bone (humerus) towards the chest (adduction) and also helps to lift the arm up (flexion).

The Function of the Pectoralis Major Is To