Chest

The chest is such a noticeable muscle group. it is always first to walk into a room and therefore it is very important in a balanced physique to have an impressive big chest. The chest is used in pushing and wrapping your arms round something. The chest is made up of two main muscles.

The Pectoralis major is that big muscle that covers each half of the front of your chest. One of its jobs is to turn your arm inward. Its other job is to help pull your arm forward 

Pectoralis minor is directly under pectoralis major. It’s attached to your third, fourth and fifth ribs at the bottom, and at the top it’s attached to the front of your shoulder blade.