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Friday 21 February 2014

interesting facts about human bones



Humans are born with 300 bones in their body, however when a person reaches adulthood they only have 206 bones. This occurs because many of them join together to make a single bone.
Most of the bones in the body are in the hands. There are 54 bones including the wrists.
The foot has 26 and the face has 14.
The longest bone in your body, the femur (thighbone), is about 1/4 of your height. The smallest is the stapes (or stirrup) in the ear, which is about 1/10 of an inch.
Humans and giraffes have the same number of bones in their necks.
The only bone fully grown at birth is located in the ear.
The smallest bone in the human body is the stapes bone which is located in the ear.
Gardening is said to be one of the best exercises for maintaining healthy bones.
Adult human bones account for 14% of the body's total weight.
Although the outsides of a bone are hard, they are generally light and soft inside. They are about 75% water.
The strongest bone in your body is the femur (thighbone), and it's hollow!
Your thigh bone is stronger than concrete.
In 2000 babies are born with a tooth that is already visible.
Enamel is hardest substance in the human body.
Fingernails grow nearly 4 times faster than toenails!
Arms are among the most commonly broken bones, accounting for almost half of all adults' broken bones. The collarbone is the most commonly broken bone among children.
Bones stop growing in length during puberty. Bone density and strength will change over the course of life, however.
The only bone in the human body not connected to another is the hyoid, a V-shaped bone located at the base of the tongue.
Bones are made up of calcium, phosphorus, sodium, and other minerals, as well as the protein collagen.
Bones function as the skeleton of the human body, allow body parts to move and protect organs from impact damage. They also produce red and white blood cells

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