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