Structure of Sternum:
(i) This is a flat bone which is present just under the skin in the middle of the front of the chest.
(ii) Its shape is like a dagger and consists of three parts: the manubrium is the uppermost part, the body is the middle portion and the xiphoid process is the tip of the bone.
(iii) The true ribs (7 pairs) are attached to the sternum.
Functions of Sternum:
(a) It protects the internal organ in the thoracic region.
(b) It also provides the surface for muscle attachment.
(c) The sternum helps in the respiratory mechanism.
