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The Human Brain

The Human Brain

The human body is divided into many different parts called organs.
All of the parts are controlled by an organ called the brain, which is
located in the head. The brain weighs about 2.75 pounds, and has a
whitish-pink appearance. The brain is made up of many cells, and is the
control centre of the body. The brain flashes messages out to all the
other parts of the body. The messages travel in very fine threads called
nerves. The nerves and the brain make up a system somewhat like telephone
poles carrying wires across the city. This is called the nervous system.

The nerves in the body don't just send messages from the brain to
the organs, but also send messages from the eyes, ears, skin and other
organs back to your brain. Some nerves are linked directly to the brain.
Others have to reach the brain through a sort of power line down the back,
called the spinal cord. The brain and spinal cord make up the central
nervous system.

T...

Posted by: Alyscia Yellowman

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