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| cushions the vertebrae and acts as a shock absorber |
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| the small space between neurons across which an impulse must move |
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| connects the brain to the spinal cord |
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| the major "highway" connecting the brain and the peripheral nervous system |
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| muscles that you are able to control |
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| the part of the peripheral nervous system that controls your breathing while you sleep |
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Definition
| any message carried by a neuron |
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| what your body does in reaction to a stimulus |
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| any change inside or outside your body that brings a response |
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| the maintaining of steady conditions inside your body no matter what is going on outside the body |
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| a tissue at the back of the eye that is sensitive to light energy |
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| fluid-filled structure shaped like a snail's shell, in the inner ear |
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| the part of a neuron that carries impulses away from the cell body |
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Definition
| part of a neuron that receives messages and sends them to the cell body |
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| part of the brain that controls voluntary muscles, balance, muscle tone |
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| made up of the brain and spinal cord |
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Term
| peripheral nervous system |
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Definition
| made up of all the nerves outside the CNS, including cranial nerves and spinal nerves |
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| part of the brain that controls voluntary muscles, balance, muscle tone |
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Definition
| automatic response to a stimulus that allows the body to respond without having to think about what action to take |
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