Some people have protruding bones on both sides of their chests. What's going on here?
This protuberance is located at the junction of the sternal stalk and the sternal body, and is anatomically called sternal angle. The sternum is divided into three parts. The sternal stalk is connected to both clavicles at the top, and sternal angle is connected to the first rib at the middle. Its anatomical significance is to align the position of the fourth thoracic vertebra, the sternum body connects the second to seventh and the costal arch, and the xiphoid process is the cartilage component at the bottom.