Functional components of glossopharyngeal nerve, SVE, GVE, GVA, SVA, GSA, Functional columns

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#glossopharyngealnerve
Glossopharyngeal nerve: Functional components
IX cranial nerve functional components
Ninth cranial nerve functional columns
Nuclei of glossopharyngeal nerve

0:00 why 9th cranial nerve is called glossopharyngeal nerve?
0:19 gag reflex
1:03 special visceral efferent (SVE) component of glossopharyngeal nerve
1:43 general visceral efferent (GVE) component of ninth cranial nerve
2:16 general visceral afferent (GVA) component of 9th cranial nerve
3:02 special visceral afferent (SVA) functional component of glossopharyngeal nerve
3:21 general somatic afferent (GSA) functional component of ninth cranial nerve

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