| Term 
 | Definition 
 
        | General term given to cells that conduct impulses |  | 
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 | Definition 
 
        | Type of nerve tissue that supports and maintains neuronal structure and function |  | 
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 | Definition 
 
        | Extensions conducting impulses to the cell body of neurons |  | 
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 | Definition 
 
        | Type of neuroglia which destroy invading microorganisms |  | 
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        | Term 
 | Definition 
 
        | Fiber conducting impulses away from the cell body of neurons |  | 
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        | Term 
 | Definition 
 
        | The neurons that carry impulses from the CNS to hand muscles, allowing movement |  | 
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 | Definition 
 
        | The junction between adjacent neurons through which the impulse must pass |  | 
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        | Term 
 | Definition 
 
        | White, fatty insulating barrier found on neurons |  | 
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        | Term 
 | Definition 
 
        | Type of neurglia that helpd to form cerebrospinal fluid |  | 
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 | Definition 
 
        | Type of neuroglia that provide insulating coverings around large PNS axons |  | 
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 | Definition 
 
        | Type of neuroglial which anchors neurons to blood capillaries |  | 
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        | Term 
 | Definition 
 
        | Type of neuroglial which form mylein sheath in CNS |  | 
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        | Term 
 | Definition 
 
        | Membranous sacs found in neurons, similar to RER |  | 
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        | Term 
 | Definition 
 
        | The autonomic nervous system is involuntary |  | 
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        | Term 
 | Definition 
 
        | Subdivision of the PNS  that plays an active role during conditions of stress (freeze, fight, flight) |  | 
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        | Term 
 | Definition 
 
        | Subdivision of the PNS that functions during normal organ operation (rest and repair) |  | 
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        | Term 
 
        | Sensory input, integregation, motor output |  | Definition 
 
        | 3 functions of the nervous system |  | 
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