Lecture title - SNS/PSNS - Parasympathetic influences

3 important questions on Lecture title - SNS/PSNS - Parasympathetic influences

What is the function of parasympathetic influences?

Stimulation of GI secretion and motor activity, relaxation of sphincters and dilation of blood vessels

What is the neurotransmitter involved in parasympathetic influences?

Acetylcholine, released near ENS plexuses

What is the mechanism used in parasympathetic influences

Vagal afferent nerves carry postganglionic fibers from mechanoreceptors and chemoreceptors and synapse to become integrated with ENS

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