Glosofaringian nerve paralysis

Glosofaringian nerve paralysis Glosofaringian nerve or cranial nerve IX is a mixed nerve, with bulbar origin. It provides taste sensitivity, innervated muscles of the pharynx, larynx and parotid gland secretion.
Somatomotorii contains nerve fibers, and fiber visceromotorii sensitive. Somatomotorii fibers originate in the upper part of the nucleus ambiguous. IX motor nerve fibers are distributed constrictorul upper throat, and muscle stilofaringian stiloglos. Visceromotorii fibers originate in the inferior salivary nucleus, unite with Jackobs's nerve, the nerve then passes deep rocky bed. Otic ganglion nerve to get such. Otic ganglion innervating fibers via nerve parotid auriculotemporal. Component sensory nerve fibers in the posterior edge sensitivity IX provides soft palate, pharynx sensitivity, tonsils, a tube and middle ear Eustache. Also provide taste sensitivity to posterior third of the tongue.
Clinical
Unilateral lesion of the nerve results in paralysis constrictorului glosofaringian upper pharynx. The patient is an embarrassment to swallow solid food. Also, the posterior pharyngeal wall moves towards the healthy patient when pronounced vowels "a" or "." Gag reflex is abolished or reduced side paralyzed.
Disorders are present and sensitivity. You can meet such a hypoesthesia or anesthesia in the region of the pharynx and posterior third of tongue. The patient is no longer able to feel the bitter taste, which is recorded posterior portion of the tongue. Fiber sensory irritation can lead to neuralgias with a particular character.
In the case of bilateral paralysis of the nerve glosofaringian meet serious trouble swallowing with refluarea nose when swallowing liquids. This is because you are paralyzed subsequent wave poles and the upper palate constrictorului upper pharynx.