What does the sternum do?

Answer:
I guess one could think of the sternum as the "backbone" that holds the ribs together, keeps them in place. The sternum and ribs are a cage like system that protects your heart and lungs from injury. Your ribs are also contected to your spine. Imagine not having any rib cage at all!
First answer by Leogal. Last edit by Karen lang44. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 15 [recommend question].