The pectoralis major muscle, or **sternocoracomastoid** muscle, is one of the largest muscles in the human body. It is located in the chest, and its function is to maintain the vertical position of the body, movement of the arms and torso. In this article we will look at this muscle in more detail.
1. Pectoral muscles: anterior, lateral and posterior 2. Location: rib cage 3. Function: maintaining vertical position and movement of the chest 4. Loading: the major upper pectoral muscles work on chest abduction, the lateral pectoral muscles work on lateral rotation and torsion chest, and the posterior pectoral muscles help in abduction and lateral rotation of the shoulder blades. 5. Types of exercises: Squats, deadlifts, presses, arm lifts, overhead rows, barbell bends, dip kicks, standing military press.