Our body has a supporting frame work made of bones. This

frame work is known as skeleton. It is the skeleton which

gives the body its firmness. Without- the skeleton our body

will be as supple as that of a worm. There is another great

advantage of the skeleton. It protects some of the most

delicate parts of the human body form external injury. Thus

the brain is kept safe in a bony box. This box safeguards

the heart and the lungs. Also by its very nature of

formation, it helps body movement with the help of muscles

attached to it. The main parts of the skeleton are the skull

and the spinal column.