The bony skeleton of the human body provides many vital functions essential to life, but one of the most noticeable is that without bones, an individual could no longer move his body. Muscles contract using bones as levers to move the legs, arms and other body parts.
The National Center for Biotechnology Information indicates the bones provide structure and support to the body as well as providing the ability to move. The skull provides the shape of the head and face, the ribs protect the vital organs and aid in breathing, and the spine allows an individual to stand erect and balance. While most people think of bones as hard and inflexible, they are a special composite mixture of minerals and proteins, which gives them a great deal of flexibility preventing breaks while still supporting the body.
The skeleton is an essential storehouse for calcium and phosphorous, necessary for correct function of other body system states the National Center for Biotechnology Information. They provide a constant level of calcium in the blood and both minerals in the cells. Without these constant levels the organs don't operate as necessary for good health. The bones are responsible for the formation of new red blood cells. These cells form in the red bone marrow of large bones.