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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.
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. When a foreign object, such as a long cotton tip, touches the mucosal surface of the oropharynx the gag reflex is initiated.
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 glossopharyngeal nerve (CN IX) is a mixed cranial nerve, which provides motor innervation to the stylopharyngeus muscle and the superior pharyngeal constrictor muscle. Check it out. Previous. Twelve cranial nerves, their exit points, anatomical course, branches and topography.
4. 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.
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
