What You Need to Know About Your Sternum. Your sternum is a bone that's located in the middle of your chest. It's also sometimes referred to as the breastbone. Your sternum protects the organs of your torso from injury and also serves as a connection point for other bones and muscles.

What is the first bone in the sternum?

In mammals the sternum is divided into three parts, from anterior to posterior: (1) the manubrium, which articulates with the clavicles and first ribs; (2) the mesosternum, often divided into a series of segments, the sternebrae, to which the remaining true ribs are attached; and (3) the posterior segment, called the ...

Is sternum pain serious?

While sternum pain is not usually serious, there are some causes of sternum pain that require immediate medical attention. A person should seek emergency medical attention if the pain: started as a result of direct trauma. is accompanied by heart attack symptoms.