Chest wall pain costochondritis

How is the chest wall built?
Ribs (costa) consist of bones caused by the disks and to whip forward and slightly downward. The upper seven ribs attach to the breastbone (sternum). In the transition between the ribs and the sternum is a cartilaginous portion that forms an elastic bridge - a sort of joint (costochondral paragraph) between the bony part of the ribs and sternum. Ribs 8-10 attach front the bruskete part of the overlying rib. The lower two ribs end blindly and is not attached to any other structures.

Ribs move when we breathe, when we twist or bend the body and the movements of the arms.