| Term 
 
        | Number of pairs of "spinal" nerves |  | Definition 
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        | Term 
 
        | Number of pairs of cranial nerves |  | Definition 
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        | Term 
 
        | Structure that divides CNS and PNS |  | Definition 
 
        | Alpha motor neuron of spinal cord. Ventral horn. Alpha m.n. is start of PNS |  | 
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        | Term 
 
        | Spinal Nerve (n. spinalis) |  | Definition 
 
        | each spinal nerve represents all nerve fibers, both sensory and motor, leaving and entering the spinal cord at each level or segment. |  | 
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        | Term 
 
        | Are sensory nerves Dorsal or Ventrally located the spinal root? |  | Definition 
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        | Term 
 
        | Do afferent neurons carry signals toward or away from the CNS? |  | Definition 
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