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oangi oangi
wrote...
11 years ago
The neurotransmitters of the sympathetic nervous system are
      a. acetylcholine at both synapses.
      b. norepinephrine at both synapses.
      c. acetylcholine at the first synapse, norepinephrine at the second synapse.
      d. norepinephrine at the first synapse, acetylcholine at the second synapse.
      e. norepinephrine at the first synapse, epinephrine at the second synapse.
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wrote...
11 years ago
c. acetylcholine at the first synapse, norepinephrine at the second synapse.


(NB>sweat glands - exception - use acetylcholine AT BOTH).
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