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Glossopharyngeal Nerve | Definition of Glossopharyngeal ...
Medical Definition of glossopharyngeal nerve. : a mixed nerve that is either of the ninth pair of cranial nerves, that has sensory fibers arising from the superior and petrosal ganglia and motor fibers arising with those of the vagus nerve from the lateral wall of the medulla, and that supplies chiefly the pharynx, posterior tongue, and parotid gland with motor and sensory fibers including gustatory and autonomic …
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Glossopharyngeal nerve | definition of glossopharyngeal ...
glossopharyngeal nerve the ninth cranial nerve; it supplies the carotid sinus, mucous membrane, and muscles of the pharynx, soft palate, and posterior third of the tongue, and the taste buds in the posterior third of the tongue. By serving the carotid sinus, the glossopharyngeal nerve provides for …
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Glossopharyngeal nerve Definition & Meaning | Dictionary.com
Glossopharyngeal nerve definition, either of the ninth pair of cranial nerves, consisting of motor fibers that innervate the muscles of the pharynx, the soft palate, and the parotid glands, and of sensory fibers that conduct impulses to the brain from the pharynx, the middle ear, and the posterior third of the tongue.
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Glossopharyngeal nerve - Wikipedia
From the anterior portion of the medulla oblongata, the glossopharyngeal nerve passes laterally across or below the flocculus, and leaves the skull through the central part of the jugular foramen. From the superior and inferior ganglia in jugular foramen, it has its own sheath of dura mater. The inferior ganglion on the inferior surface of petrous part of temporal is related with a triangular depression into which the aqueduct of cochlea opens. On the inferior side, the glossopharyngeal nerve is lateral and anterior to the vagus n…
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The Glossopharyngeal Nerve (CN IX) - Course - Sensory ...
Oct 25, 2020 · The glossopharyngeal nerve supplies sensory innervation to the oropharynx, and thus carries the afferent information for the gag reflex. When a foreign object touches the back of the mouth, this stimulates CNIX, beginning the reflex. The efferent nerve in this process is the vagus nerve, CNX.
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Glossopharyngeal nerve definition and meaning | Collins ...
glossopharyngeal nerve in American English. noun. Anatomy. either of the ninth pair of cranial nerves, consisting of motor fibers that innervate the muscles of the pharynx, the soft palate, and the parotid glands, and of sensory fibers that conduct impulses to the brain from the pharynx, the middle ear, and the posterior third of the tongue.
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Glossopharyngeal neuralgia | Genetic and Rare Diseases ...
Nov 18, 2017 · Glossopharyngeal neuralgia is a disorder that is associated with repeated episodes of severe pain in the tongue, throat, ear, and tonsils. These areas are all connected to the ninth cranial nerve, also called the glossopharyngeal nerve. Episodes of pain may last from a few seconds to a few minutes and usually occur on one side of the face.
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How rare is glossopharyngeal neuralgia?
How common is glossopharyngeal neuralgia (GPN)? The disorder is rare , with less than 1 case reported per year among 100,000 people in the United States. It tends to occur more often in adults over age 40, but it may be present at any age. It appears to affect men more than women.
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Which of the cranial nerves are sensory only?
Cranial Nerves. Most cranial nerves are mixed nerves, meaning they are both functioning as sensory and for motor function. Only three pairs of cranial nerves are purely sensory in function. To remember the cranial nerves in order take note and memorize this: Oh, Oh, Oh To Touch And Feel Very Good Velvet AH.
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Is the second cranial nerve a sensory nerve?
The second cranial nerve (CNII) is the optic (sometimes referred to as the ophthalmic) nerve . This nerve is a sensory nerve that functions to collect stimuli (light) received by the retina of the eye, convert to electrical impulses, and transfer this data through the brain to the primary visual cortex.
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What is cranial nerve 9?
The glossopharyngeal nerve, known as the ninth cranial nerve (CN IX), is a mixed nerve that carries afferent sensory and efferent motor information.
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