Upper Chest Muscle Anatomy. The pectoralis major muscle is made up of 3 parts whose fibers run in different directions. Extensor expansion on the radial side of the proximal phalanx of digits 2-5.
The ribs sternum scapula clavicle vertebrae and neck. To fully develop your chest you need to hit it with heavy weight using a couple smartly chosen exercises. The thorax has two major openings.
The thorax has two major openings.
In addition the 60 degrees incline bench press led to max muscle activation of the anterior deltoid. Musculocutaneous nerve supplies the BBC Muscles. The pectoral region is located on the anterior chest wall. Pectoral shoulder upper arm anterior forearm posterior forearm and the hand.
