The sternum is sometimes known as the breastbone. This flat bone sits at the front of the chest and connects to the ribs with cartilage. The sternum is part of the rib cage, a series of bones that protects the heart and lungs from injuries. Causes of sternum and substernal pain Sternum Diagram Diagram - Chart - diagrams and charts with labels. This diagram depicts Sternum Diagram and explains the details of Sternum Diagram.
Sternum Diagram
