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Cranial nerve IX - the Glossopharyngeal nerve

 

Signs and Symptoms of Lesions

 

Loss of gag reflex, slight swallowing difficulty, loss of taste in the posterior third of the tongue, uvula deviated to the unaffected side, pharynx, tonsils, fauces, and back of tongue have loss of sensation; when saying “ah” there is a loss of constriction of the posterior pharynx, increased saliva, involuntary rapid eye movement and/or tachycardia.

 

Glossopharyngeal Nerve Test

 

Sensation may be determined by making gloved contact on the tongue and/or pharynx.  The gag reflex should be performed to both sides.

                                   

 



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