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Medical Neurotransmitters in the PNS

  1. Jun 1, 2009 #1
    I read that the only 2 neurotrasmitters in the PNS are acetylcholine and norepinephrine. Acetylcholine being the main one. That can't be right can it? What about epinephrine?
     
  2. jcsd
  3. Jun 13, 2009 #2
    Epinephrine is not a neurotransmitter in the PNS. Its only activity as a neurotransmitter is a minor one in the CNS. Its primarily synthesized in the adrenal gland and its main systemic activity is as a hormone.
     
    Last edited: Jun 13, 2009
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