The chest anatomy includes the pectoralis major, pectoralis minor and the serratus anterior. Learn about each of these muscles, their locations, functional anatomy and exercises for them. Function of the Chest Muscles The chest is part of a larger group of “pushing muscles” found in the upper body. The chest, as part of this group, enables you to perform pushing actions such as the barbell bench press or a daily activity such as moving a heavy dresser. To fully develop your chest, you need to hit it with heavy weight using a couple smartly chosen exercises. Read on and learn more about each chest muscle, and how to properly perform exercises that adequately challenge them. Pectoralis Major The pectoralis major is a large, substantial, fan-shaped muscle. And as you might guess from the word “major,” it makes up the majority of the chest muscle mass. It originates at your clavicle, ribs, and sternum, and inserts into the upper portion of your humerus (upper arm bone f
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