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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 terminal 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!
The branchial motor component of CN IX provides voluntary control of the stylopharyngeus muscle, which elevates the pharynx during swallowing and speech. Origin and central course. The branchial motor component originates from the nucleus ambiguus in the reticular formation of the rostral medulla.
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.
The tonsillar branches of the glossopharyngeal nerve are also 2 - 3 side branches carrying sensory fibers. These branches supply the mucosal lining of the palatoglossal arch and the palatopharyngeal arch, as well as the palatine tonsils. Carotid branch
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.
Pharyngeal branches (rr. pharyngei) provide sensory innervation to the mucous membrane of the pharynx, tonsils, and soft palate. These branches create the anastomosis with the branches of the vagus nerve as well as with the branches of the sympathetic trunk to form the pharyngeal plexus.
