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The Brain - Online Term Paper

The Brain

The human body is divided into many different parts called organs. All of the part are controlled by an organ called , which is located in the head. weighs about 3 pounds, and has a whitish-pink appearance. is separated into 3 part, the cerebrum, the cerebellum, and stem. Each part consists chiefly of nerve and supporting cells. The nerves and make up a system just like telephone poles carrying wires, making up the nervous system. The human brain has from 10 billion and 100 billion neurone's. is protected by a series of bones called the skull. Twenty-eight bones make up the skull. keeps itself safe by keeping itself liquid. Nearly one fifth of the blood pumped by the heart ...

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called the cortex. The cortex is mainly made up of nerve cell fibres. The cerebrum cortex is folded into a surface with many ridges and grooves. This folding greatly increases the surface area of the cortex and the number of nerve cells it contains within the limited space of the skull. The largest portion of the cortex is the association brain cortex. Every region of has areas of association cortex that analyse, process, and store information. These association areas make possible all our higher mental abilities, such as thinking, speaking, and remembering.
The cerebellum is the part of most responsible for balance, posture, and the co-ordination of movement. It lies below the back part of the cerebrum. The cerebrum consists of a large mass of closely packed folia. The cerebellum carries small "programs" that have been previously learned. For example, how to write, move, run and jump are all previously learned activities that recorded and be played back when needed. ...

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PAPER DETAILS

Added: 8/9/2006 02:48:01 PM
Category: Health & Medicine
Type: Free Paper
Words: 755
Pages: 3

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