The sternocostal joints are the joints that connect the human sternum to the ribs, and are located on both sides of the chest in the anterior midline of the human body. The sternum is a handle-like shaped bone in the midline of the human anterior chest. In the neck directly below the trachea, the clavicle head and the sternum is connected to the position of the sternoclavicular joint, immediately below the sternoclavicular joint is the body’s first thoracic rib joints to the sternum as the demarcation line between the left and right sides of the one, the first thoracic rib joint is the only completely inactive thoracic rib joints. The first thoracic rib joint is the only completely inactive thoracic rib joint. The second to seventh thoracic rib joints are in the following order, these six pairs of thoracic rib joints belong to the minimally mobile joints, and there are only seven pairs of thoracic rib joints in a normal human being. The rib cartilages of the eighth to tenth ribs are connected to the rib cartilages of the seventh ribs to form the arch of the ribs together.