A member asked:

What can cause excessive mouth watering and the need to swallow to prevent vomiting?

A doctor has provided 1 answer

A primitive reflex: The vomiting reflex is controlled by two units in the brain medulla--one receives nerve impulses from the GI tract, the other is a chemical receptor. Both have nerve connections to not only the GI tract (pharynx, mesenteric vessels, bile ducts) but also from brain corticobulbar areas that mediate smells, sights, & taste. What is your vomiting apparatus responding to (e.g. GI &/or brain inputs)?

Answered 7/22/2017

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