Even before we reach the minimum school age, we are well aware that within our body there are a large number of bones. The human skeleton is made up of all the big and little bones in our body that form our framework. By the time we reach the fifth grade, we are taught what many of these bones are called and what the function of the skeleton is.
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The Skeleton's Jobs
The skeleton gives humans their shape and allows us to move. More importantly, the skeleton is the protector of vital organs, such as the heart, brain and lungs.
How Many Bones
A baby has around 350 bones in his skeleton when he is first born. Some bones will join together to form one bone. Therefore, by the time we reach adulthood, our skeleton has around 206 bones.
Hands and Feet
More than half of the body's 206 bones are found in your feet and hands. More than 20 bones make up the inner structure of each foot; 27 bones make up the inner structure of each hand.
The bones of the skeleton can be put into just five shape categories: sesamoid bones, irregular bones, long bones, short bones and flat bones.
Bone marrow is a soft substance found in the centre of each bone. Marrow produces millions of blood cells each day for use in the rest of your body.
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