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The 9th (glossopharyngeal) and 10th (vagus) cranial nerves are usually evaluated together. Whether the palate elevates symmetrically when the patient says "ah" is noted. If one side is paretic, the uvula is lifted away from the paretic side.
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7 lis 2022 · The glossopharyngeal nerve is the 9th cranial nerve (CN IX). It is 1 of the 4 cranial nerves with sensory, motor, and parasympathetic functions. It originates from the medulla oblongata and terminates in the pharynx.
For all practical purposes, the ninth nerve cannot be tested separately, and isolated lesions are almost unknown. In the cerebellopontine angle, the eighth and ninth nerves can be involved by tumors. At the jugular foramen the ninth, tenth, and eleventh nerves can all be involved (e.g., by a glomus tumor or other masses).
6 maj 2023 · Cranial nerve (CN) testing is the physical functional assessment of the nerves arising from the brain and innervating the head, neck, and trunk. This testing is widely applicable to emergency and clinical situations and can be performed relatively quickly with equipment readily available in the hospital or ambulatory environment.[1]
25 paź 2020 · The glossopharyngeal nerve, CN IX, is the ninth paired cranial nerve. In this article, we shall look at the anatomical course of the nerve, and the motor, sensory and parasympathetic functions of its terminal branches.
Origin and central course. The branchial motor component originates from the nucleus ambiguus in the reticular formation of the rostral medulla. Fibers leaving the nucleus ambiguus travel anteriorly and laterally to exit the medulla, along with the other components of CN IX, between the olive and the inferior cerebellar peduncle.
The glossopharyngeal (CN IX) and vagus nerve (CN X) are commonly assessed together. They primarily innervate the muscles of the tongue and pharynx, the thorax, abdominal viscera, and larynx. No diagnostic accuracy studies are available on these assessments so the clinical value is unknown.
