The chest, also known as the thorax, is a very significant part of the human body. In this thorax region, the organs of the circulatory system and respiratory system are housed. In order to protect one of the most vital regions in the body, the body has developed an impressive array of defenses. One of the most important defense that the body created is 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 few know their structure and composition. Bones are made up a type of dense connective tissue, formed from deposits of calcium phosphate.. Each bone has a unique shape, determined by the genetic code that leads to the formation of the bones. The skeletal bones are very important in aiding the body with movement and strength.
One of the most important functions Is the production of red blood cells and white blood cells. In the middle region of many bones exists the bone marrow. In this region, red blood cells and white blood cells are produced. 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 very important in that they defend the body against invaders and pathogens.
Twenty five skeletal bones are found in the chest region.
24 of these bones are known as the rib, and the body contains 2 sets of 12 ribs on each side of the chest. The sternum is the 25th bone of the chest that accompanies the twenty four rib bones. These chest bones are essential in the protection of the lungs and heart. The ribs are curved skeletal bones that form a structure known as the rib cage around the lungs and heart. These bones protect the heart and lungs and also expand to allow for breathing. The other bone of the chest, the sternum, is found in the center of the chest. It's role is protection of the heart primarily.
These chest bones play an essential role in human survival and existence. Without these bones, vital organs such as the heart and lungs could be compromised. 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.
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