what do the chest muscles do
Muscles of the Chest and Upper Back. The muscles of the chest and upper back occupy the thoracic region of the body inferior to the neck and superior to the abdominal region and include the muscles of the shoulders.hese important muscles control many motions that involve moving the arms and head â such as throwing a ball, looking up at the sky, and raising your hand. Breathing, a vital body function, is also controlled by the muscles connected to the ribs of the chest and upper back....