Question

If the palms face backward instead of to the side, this is medially rotating the humerus. Which muscles are usually tight?

1) Deltoid muscles
2) Biceps brachii muscles
3) Pectoralis major muscles
4) Latissimus dorsi muscles

Answer 1

When the palms face backward, the humerus is medially rotating. The pectoralis major muscles are usually tight in this position. correct option is 3.

Step-by-step explanation:

When the palms face backward instead of to the side, this is medially rotating the humerus. The muscles that are usually tight in this position are the pectoralis major muscles. The pectoralis major muscle is thick and fan-shaped, covering much of the superior portion of the anterior thorax. It facilitates flexing and medial rotation of the arm.