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Extraocular movements controlled by these nerves are tested by asking the patient to follow a moving target (eg, examiner’s finger, penlight) to all 4 quadrants (including across the midline) and toward the tip of the nose; this test can detect nystagmus and palsies of ocular muscles.
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Jaw jerk (by the 5th cranial nerve) Any asymmetric increase...
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6 maj 2023 · Cranial Nerve IX. The glossopharyngeal nerve (CN IX) is responsible for motor (SVE) innervation of the stylopharyngeus and the pharyngeal constrictor muscles by the nucleus ambiguus. Inferior salivary nucleus fibers travel with cranial nerve IX to provide general visceral efferent (GVE) innervation to parotid, buccal and labial glands.
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.
3 lis 2023 · One of the ways to test the functionality of the glossopharyngeal nerve is to test the patient’s gag reflex. Since the glossopharyngeal nerve innervates the mucosa of the pharynx, and at the same time, it creates numerous anastomosis with the vagus nerve (dominant for the gastrointestinal functions), the slight stimulation of the posterior ...
Pupillary Response Testing: Relative Afferent Pupillary Defect (RAPD) •Swinging Flashlight Test • Looks for afferent pupil defect (CN II) • Baseline appear normal • Move flashlight between left & right eye at steady rate • With right afferent defect, pupil appears to dilate when swing light repeatedly from left (normal
30 maj 2024 · The glossopharyngeal nerve is the ninth cranial nerve (CN IX). It exits the brainstem out from the sides of the upper medulla, just rostral to the vagus nerve and has sensory, motor, and autonomic components (TA: nervus glossopharyngeus or nervus cranialis IX).
11 kwi 2019 · Cranial nerve IX is the glossopharyngeal nerve, important for parasympathetic, motor and sensory innervation of the tongue, pharynx and larynx. Here, we break down the different anatomical structures contributing to the glossopharyngeal nerve and discuss its clinical relevance.
