The pectoralis major muscle can be divided into groups of fibers superior. True or False

Answer: True

Explanation:

Pectoralis major is a thick, fan-shaped muscle contributing to the thoracobrachial motion. It consists of group of fibers superior, a clavicular part and a sternal part, both converging to a flat tendon that inserts on the humerus. It's engrafted by both medial and lateral pectoral nerves.