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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 branches.
3 lis 2023 · This article covers the anatomy of the glossopharyngeal nerve (CN IX), focusing on its course, branches and its function. Learn all about it now at Kenhub!
General sensory information from the upper pharynx and posterior one-third of the tongue travel via the pharyngeal branches of CN IX. These peripheral processes have their cell body in either the superior or inferior glossopharyngeal ganglion.
11 kwi 2019 · When examining CN IX, it is important to test the glossopharyngeal nerve. One of the more accessible terminal branches of this nerve is the tonsillar branch, which supplies sensory innervation to the oropharynx.
Together with branches of the vagus nerve (CN X) and laryngopharyngeal nerve of the cervical sympathetic trunk, these branches participate in forming the pharyngeal nerve plexus on the posterior wall of the pharynx. This plexus eventually innervates the mucosa lining the upper part of the pharynx.
22 maj 2017 · Branchial motor function (SVE): The muscular branch from the nucleus ambiguus innervates the stylopharyngeal muscle to elevate the pharynx during phases of swallowing and speech. It also innervates the superior pharyngeal constrictor together with muscular branches of CN X.
7 lis 2022 · Structure and Function. 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). See Image. The Glossopharyngeal Nerve.
