The sternum is a bone in the thorax. It is a flat bone positioned vertically in the middle of the thoracic cage
. The first pairs of ribs are attached to the sternum symmetrically on each side. The sternum is composed of three main elements: the manubrium at the top joining with the clavicles and two first ribs; the body
of the sternum supporting the next five pairs of ribs; and the xiphoid process, which ends in a point at the bottom of the sternum.
Original article published by
. Translated by Jeff