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The Central Nervous System is made up of the brain and the spinal cord.
They are protected by the skull and the vertebrae and insulated by fluid
and tissue. It is called central because it is where most of the signals
go to and come from. It could be compared to the CPU of a computer or
the city hall of a city. The brain and spinal cord are discussed thoroughly in the next two sections, The Brain and The Spinal Cord.
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[©Martin and Ambrose 2001] |
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