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The Human Brain
Part 1 of Paper
....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 ca.... Part 2 of Paper
....the ideal combination. The other
twenty bones make up the face, jaw and other parts of the skull.
Another way the brain keeps it self safe is by keeping itself in
liquid. Nearly one fifth of the blood pumped by the heart is sent to the
brain. The brain then sends the blood through an intricate network of
blood vessels to where the blood is needed. Specialized blood vessels
called choroid plexuses produce a protective cerebrospinal fluid. This
fluid is what the brain literally floats in.
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| Number of words: 2092 - Approximate pages: 8 |
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