gag reflex

gag reflex
gag reflex 'gag- n reflex contraction of the muscles of the throat caused esp. by stimulation (as by touch) of the pharynx

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a normal reflex action caused by contraction of pharynx muscles when the soft palate or posterior pharynx is touched. The reflex is used to test the integrity of the vagus nerve and glossopharyngeal nerve.

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pharyngeal r.

Medical dictionary. 2011.

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Look at other dictionaries:

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