BRAIN
CRANIAL NERVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Whole tongue
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Anterior third
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Anterior two-thirds
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Posterior third
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Detailed explanation-1: -Part of the tongue: The glossopharyngeal nerve helps you taste food in the back third of your tongue. Stylopharyngeus muscle: A long muscle that runs down part of your throat. CN IX connects to this muscle to lift the voice box (larynx) and nearby throat (pharynx). This makes it possible to swallow.
Detailed explanation-2: -The glossopharyngeal nerve as noted above is a mixed nerve consisting of both sensory and motor nerve fibers. The sensory fibers’ origin include the pharynx, middle ear, posterior one-third of the tongue (including taste buds); and the carotid body and sinus. These fibers terminate at the medulla oblongata.
Detailed explanation-3: -Glossopharyngeal nerve function Motor, which innervate the muscles derived from the third pharyngeal arch, which are: The stylopharyngeus muscle. The superior pharyngeal constrictor muscle.