glossopharyngeal nerve examination

The tongue branch of the glossopharyngeal nerve is the nerve emanating from the upper nucleus of the solitary tract nucleus, controlling the taste of the back 1/3 of the tongue, and the mucous membrane sensation. The glossopharyngeal nerve examination determines whether the glossopharyngeal nerve is damaged by the patient's pronunciation and the response to the bilateral posterior pharyngeal wall. When the bilateral posterior pharyngeal wall is touched, the normal reaction is soft palate, nausea and vomiting. Basic Information Specialist classification: neurological examination classification: neuroelectrophysiology Applicable gender: whether men and women apply fasting: not fasting Reminder: Don't be too nervous when doctors check, and actively cooperate with the doctor's work. Normal value When the bilateral posterior pharyngeal wall is touched, the normal reaction is soft palate, nausea and vomiting. Clinical significance Abnormal result 1. When the glossopharyngeal nerve is damaged, the pronunciation is hoarse, the voice is nasal, the dysphagia is swallowed, the drinking water coughs, the pharyngeal sensation is lost, the pharyngeal reflex disappears; the soft palate movement is limited, one side of the paralysis is light, and the side is visible when opening the mouth. The soft zygomatic arch is lower, and the uvula is perpendicular to the healthy side. When the pronunciation of "ah" is pronounced, the soft side of the sacral side is lifted normally, the side of the disease is restricted, the sacral side is swayed, the pharyngeal sensation is missing, and the pharyngeal reflex disappears. . 2, glossopharyngeal nerve damage, and no long bundle sign, often suggesting brain neuropathy. Unilateral cortical medullary bundle lesions showed no glossopharyngeal nerve and vagus nerve paralysis, because the glossopharyngeal nerve and vagus nerve nucleus were both innervated cortical medullary bundles. Symptoms and signs of pseudobulbar paralysis (pseudobulbar palsy) occurred in the bilateral cortical medullary bundle lesions. People who need to be examined: patients with hoarseness, nasal vocalization, difficulty swallowing, loss of pharyngeal sensation, loss of pharyngeal reflex, and limited movement of soft palate. Precautions Contraindications before inspection: The tongue depressor should be disinfected before inspection. Requirements for inspection: When checking, cooperate with the doctor to send "ah" sound and swallow, drink and other actions. Inspection process First pay attention to whether the patient speaks nasal, hoarseness or aphasia, difficulty swallowing, drinking water and coughing. Then check whether the pharyngeal muscles are atrophy, whether the position of the uvula and the height of the soft palate are symmetrical. Then ask the patient to make an "ah" sound, pay attention to whether the squat is centered, and whether the height of the soft sputum on both sides is consistent. Finally, the pharyngeal reflex was examined, and the posterior pharyngeal wall was touched by the tongue depressor respectively. The normal reaction was soft palate rise, nausea and vomiting. Not suitable for the crowd Inappropriate population: Patients with severe oral ulcers or other lesions. Adverse reactions and risks Nothing.