Gag reflex

The gag reflex is a reflexcontraction of the back of the throat that prevents objects from entering the throat except as part of normal swallowing. This helps prevent choking.

Touching the soft palateevokes a strong gag reflex in most people, although people can train themselves to resist the gag reflex, for example to be able to perform "deep throat" oral sex, or as part of the act of sword swallowing. The gag reflex can also be used to induce vomiting.

Absence of the gag reflex is a symptom of a number of severe medical conditions, one of which may be damage to the glossopharyngeal nerve.

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External links

• How to deal with a bad gag reflex

This article is licensed under the GNU Free Documentation License.
It uses material from the http://en.wikipedia.org/wiki/Gag+reflex Wikipedia article Gag reflex.