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The central part of the nervous system is located in
the spine |
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and skull. In the skull lies the brain, the control
center for the |
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nervous system. The spinal cord is in the spine. A
hole in the |
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base of the skull allows the brain and spinal cord to
be connected. |
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Nerves all around your body are connected to your
spinal |
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cord. The peripheral part of the nervous system
extends |
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through the rest of your body. A reflex is an action
that is unplanned |
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such as when a nerve senses extreme heat such as when
you touch |
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burning water. The muscle responds with a reflex
causing your hand |
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to move away from the heat. |
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Receptors |
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There are several types of cells in your skin called
receptors. |
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Each type of receptor is sensitive to a different
thing. Free nerve |
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endings sense pain. They have dirrect connections to
your spinal |
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cord. They are constantly sending impulses to your
central nervous |
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system. |
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