Many scientists would agree that the chest is perhaps the most vital region in the entire human body. In this thorax region, the organs of the circulatory system and respiratory system are housed. The body has developed a series of defenses to protect one of the most significant regions in the body. At the top of the list of the bodies defenses are the bones. In the thorax or chest region, the chest bones can be found.

Many people know what the skeletal system bones look like. However, not many people know the structure of these bones. Bones are made up a type of dense connective tissue, formed from deposits of calcium phosphate.. The bones of the skeletal system all have distinct shapes and sizes. The bones of the body function in protecting the body and providing the body’s shape.

One key function of the bones that is often overlooked is the production of red and white blood cells. In the center of most bones lies a substance known as bone marrow. In this bone marrow region, the red and white blood cells are formed. The red blood cells are very important because they transport O2, also known as oxygen, to all regions of the body. White blood cells are part of the immune system and play important roles in defending against bacteria.

In the thorax, twenty five bones can be found. The ribs make up the majority of the bones found in the chest. There are twenty four rib bones in the chest. The sternum is the 25th bone of the chest that accompanies the twenty four rib bones. These twenty five thorax bones are very significant in protecting the organs of the respiratory and circulatory system. The ribs are curved skeletal bones that form a structure known as the rib cage around the lungs and heart. Along with protecting the heart and lungs, the ribs allow breathing by expanding and compressing. The sternum lies at the center of the chest, protecting the heart.

Humans would find it very difficult to survive without the protection of the thorax bones. The lack of the chest bones would allow the easy damage of the circulatory and respiratory organs. Since evolution drives organisms to survive, humans have evolved to develop these thorax bones to protect the lungs and heart. The chest bones account for a total of 25 bones out of the 206 bones in the human skeleton.

If you are interested in the chest bones, you may also be interested in skull anatomy, head on over to LearnBones.com. A thorough understanding of skull anatomy is essential for someones knowledge of anatomy. Learn Bones is an excellent source on the bones of the body. There you will find detailed descriptions, diagrams, and images.

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