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Home Q & A Board Science-Related Homework Help Psychology
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KENHUYNH96 KENHUYNH96
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6 years ago
In the parasympathetic system, the terminal buttons of preganglionic fibers secrete ________, whereas the postganglionic fibers secrete ________.
 
  A) norepinephrine; acetylcholine
  B) glutamate; acetylcholine
  C) serotonin; norepinephrine
  D) acetylcholine; acetylcholine
  E) acetylcholine; norepinephrine
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ytrtryytrtry
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