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The Glossopharyngeal Nerve (CN IX) - Course - Sensory - TeachMe…
Cranial Nerves | Medcomic
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Glossopharyngeal nerve: Anatomy and function | Kenhub
2 days ago · The glossopharyngeal nerve is a mixed nerve that contains both motor and sensory fibers. It originates from the medulla oblongata, where the four of its nuclei are located. Those nuclei give rise to the functionally diverse neuronal fibers that are involved in the motor and sensory functions of this nerve.
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Neuroanatomy, Cranial Nerve 9 (Glossopharyngeal ...
Nov 19, 2020 · The glossopharyngeal nerve carries sensory, efferent motor, and parasympathetic fibers. Its branches consist of tympanic, tonsillar, stylopharyngeal, carotid sinus nerve, branches to the tongue, lingual branches, and a communicating branch to cranial nerve X (vagus nerve). Special visceral efferent fibers (branchial motor) are the main motor fibers of the glossopharyngeal nerve and supply …
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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 neuralgia | Genetic and Rare Diseases ...
Nov 18, 2017 · Glossopharyngeal neuralgia causes repeated episodes of severe pain in areas connected to the ninth cranial nerve, also known as the glossopharyngeal nerve. These areas include the back of the nose and throat, back of the tongue, ear, tonsil area, and voice box. Some episodes may also be associated with coughing or hoarseness.
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Glossopharyngeal Nerve Function, Anatomy & Diagram | …
Jan 15, 2015 · The glossopharyngeal nerve connects to the brainstem at the upper medulla, travels through the base of the skull at the jugular foramen, and ends in the mouth in …
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The Vagus and Glossopharyngeal Nerves in Two Autonomic ...
The glossopharyngeal and vagus cranial nerves provide the brainstem with sensory inputs from different receptors in the heart, lung, and vasculature. This afferent information is critical for the short-term regulation of arterial blood pressure and the buffering of emotional and physical stressors. Glossopharyngeal afferents supply the medulla with continuous mechanoreceptive signals from …
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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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Which three cranial nerves are purely sensory in function?
Cranial nerves I, II, and VIII are pure sensory nerves. Cranial nerves III, IV, VI, XI, and XII are pure motor nerves. Cranial nerves V, VII, IX, and X are mixed sensory and motor nerves. The olfactory nerve (CN I) contains special sensory neurons concerned with smell. The optic nerve (CN II) contains sensory neurons dedicated to vision.
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What are three cranial nerves have only sensory function?
There are three sensory cranial nerves: olfactory (I), optic (II), and vestibulocochlear (VIII). These cranial nerves are responsible for our senses of smell, vision, hearing, and equilibrium. Medical professionals test cranial nerve I by having a person close their eyes and one nostril while inhaling a scent such as coffee or vanilla.
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Which cranial nerves are pure motor in function?
The trigeminal nerve is the largest cranial nerve and has both motor and sensory functions. Its motor functions help a person to chew and clench the teeth and gives sensation to muscles in the tympanic membrane of the ear.
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What nerve carries only sensory fibers?
The tympanic nerve carries sensory fibers from the tympanic plexus of middle ear, from mastoid air cells, and pharyngotympanic tube.
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