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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.
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!
11 kwi 2019 · Glossopharyngeal nerve branches. Here is a short summary of the branches of the glossopharyngeal nerve and their functions: Tympanic: sensory innervation to the mucosa of the middle ear, turning into the lesser petrosal nerve to supply parasympathetic fibres to the parotid gland* Stylopharyngeus: motor innervation to the stylopharyngeus
22 maj 2017 · Pharyngeal branches (GSA): Together with the branches of the vagus nerve, these form the pharyngeal plexus (see CN X). Stylopharyngeal branch (SVE): It innervates the stylopharyngeus muscle and parts of the superior constrictor pharyngeal muscle.
13 wrz 2024 · The glossopharyngeal nerve exits the cranial cavity (skull) through a structure called the jugular foramen, which is a large opening in the base of the skull. It then gives off a branch called the tympanic nerve, which goes through the temporal bone to reach the middle ear.
From this nucleus the fibers are first directed backward, and then they bend forward and lateralward to join the fibers of the sensory root. The nucleus ambiguus gives origin to the motor branches of the glossopharyngeal and vagus nerves, and to the cranial part of the accessory nerve.
