What Neurotransmitter Is Released by Both Preganglionic and Postganglionic Parasympathetic

question 62

Multiple Choice

What neurotransmitter is released by both preganglionic and postganglionic parasympathetic neurons at their synapses?

• A) epinephrine
• B) norepinephrine
• C) acetylcholine
• D) both epinephrine and norepinephrine

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