sternum
B2Pronunciation
UK
- /stˈɜːnəm/
US
- /ˈstɜr.nəm/noun
Description
- breastbone
- chest bone
- central part of the ribcage
Imagine the middle of your chest. There is a long, flat bone there that runs down from below your neck. It is often called the breastbone. It helps protect important organs like the heart and lungs, and it gives the ribs a place to connect through cartilage. If you have ever seen a skeleton, you have probably noticed this bone in the center of the chest. A break in it usually happens after a strong hit, such as in a car accident.
The sternum, also known as the breastbone, is a long, flat bone in the center of the chest. It is an important part of the rib cage because it helps protect the heart and lungs and gives the ribs a place to attach through cartilage.
The sternum is not just one simple piece. It is made of three main parts that join together as the body develops: the manubrium at the top, the body in the middle, and the xiphoid process at the bottom. Doctors often use it as a landmark when they examine the chest or do medical procedures in that area.
In medical settings, you might hear about problems involving the sternum, such as costochondritis, which is inflammation in the cartilage that connects the ribs to it, or fractures in the bone itself. These injuries are often caused by blunt force, such as during car accidents or falls. The sternum can also help doctors judge the position of the chest when checking for heart or lung problems.
So, even if you do not think about it every day, the sternum is a vital bone that quietly protects major organs and helps hold the chest together.
Examples
- 1
Medical exam
The doctor pressed gently on his sternum to check where it hurt.
Meaning
sternum
the breastbone in the center of the chest
- 2
Injury pain
She felt a sharp pain near her sternum after the fall.
- 3
CPR training
In CPR class, we learned where to place our hands on the sternum.
Forms and spellings
3 forms open this card.
Main spelling
- sternumnoun
Forms
- sternapluralnoun
- sternumspluralnoun