NEUROLOGY
SURGERY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The parasympathetic division of the autonomic nervous system yields impulses that are mediated by the secretion of ____, the dominant neurotransmitter in parasympathetic nervous system functions.
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Serotonin
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acetylcholine
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cerebellum
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dopamine
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Explanation:
Detailed explanation-1: -Parasympathetic neurotransmitters: Acetylcholine is the predominant neurotransmitter from the parasympathetic nervous system, in both the preganglionic and postganglionic neurons.
Detailed explanation-2: -The neurotransmitters involved in the ANS are acetylcholine, norepinephrine, and epinephrine. Preganglionic neurons of the sympathetic and parasympathetic divisions and postganglionic neurons of the parasympathetic nervous system utilize acetylcholine (ACh).
Detailed explanation-3: -Acetylcholine, the neurotransmitter of the parasympathetic nervous system, effects cellular responses (mAChR) in glands, smooth muscle, and cardiac muscle cells via activation of muscarinic cholinergic receptors.
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