Mr.WorldWide

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BaCk

You know, you can play the violin, smell popcorn, tap your foot and think abut a footbull match, all at the same time! You can do this by using your brain, the ‘boss’ of your body. The brain is made up of abut 100 billion neurons.
Although it makes up only two percent of your wight, it uses abut 20 percent of your body's energy.



Your jellylike brain has to be protected from injury. This happens in three ways. Fist,

1) your skull is very hard and string.
Second
2) your brain floats in a fluid.
Third
3) thick tissue surrounds the fluid.





Look at the picture of the brain. The largest part is called the cerebrum. It looks like the wrinkled halves of a walnut, dose't it? Well, this is the part that allows you to

think. It lets you play computer games, remember phone number, solve problems and imagine stories. It also lets you know what a bird looks like and what a flower smells like.



Below the cerebrum is the cerebellum which means “little brain”. It makes the parts of your body work together well and helps you keep your balance. You need it when you ride your bike and think about other things at the
same time.

Another small but important part of the brain is the brain stem. It controls actions that happen without you thinking, such as breathing. Wouldn't it be difficult to remind your heart to pump blood or your stomach to digest food?