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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.
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!
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.
3 lis 2023 · Cranial nerves are the 12 nerves of the peripheral nervous system that emerge from the foramina and fissures of the cranium. Their numerical order (1-12) is determined by their skull exit location (rostral to caudal). All cranial nerves originate from nuclei in the brain.
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.
1 kwi 2023 · The nervous branches of the extracranial segment of the IX nerve are pharyngeal (sensation from posterior oropharynx and soft palate), sinus nerve (parasympathetic supply to carotid body and sinus), stylopharyngeus (motor innervation to the stylopharyngeus muscle).
