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The Nervous System

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Term
Definition
central nervous system   (CNS)-brain and spinal cord  
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peripheral nervous system   (PNS)-all nerves  
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autonomic nervous system   (ANS)-regulates involuntary actions  
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sensory neurons   afferent neurons-conduct impulses to the spinal cord and brain  
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motor neurons   efferent neurons-conduct impulses away from brain and spinal cord  
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interneurons   conduct impulses from sensory neurons to motor neurons  
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multiple sclerosis   a myelin disorder of CNS  
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neuroma   tumor of the nervous system  
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concussion   brain injury caused by jolt to head  
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cerebrovascular accident   (CVA)-"stroke"-hemorrhage  
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cerebral palsy   (CP)-paralysis caused by motor control are of brain befoer, during, or shortly after birth  
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dementia   syndrome that includes memory loss, personality changes, reduced intellectual capacity  
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Alzheimer disease   brain disorder of adulthood characterized by dementia  
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Huntington disease   inherited disorder that progresses to severe dementia  
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seizure   sudden burst of abnormal neuron activity that results in temporary changes in brain function  
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epilepsy   characterized by recurring seizures  
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neuritis   general term referring to nerve inflammation  
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trigeminal neuralgia   recurring episodes of stabbing pain  
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Bell palsy   paralysis of facial features resulting from damage to facial nerves  
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shingles   herpes zoster-viral infection caused by chickenpox virus producing characteristic painful plaques  
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neuroblastoma   malignant tumor of the sypathetic nervous system in young children  
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Created by: ddoyon
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