Glossopharyngeal nerve (Cranial nerve IX) | 合法醫療器材資訊網

Glossopharyngealnerveisamixednervethatconsistsbothofthemotorandsensoryfibersthatrisefromitsnuclei.Thisnervehasaltogether4nuclei ...

Just like there is the Club 27 in the world of rock ‘n’ roll, there is sort of the Club 12 when it comes to the anatomy of head and neck[1]. Of course, we are not speaking about the legends of the rock ‘n’ roll, but about the 12 cranial nerves[2].

Explaining all of them at once would mean too much information at one moment, so in this particular article, we will be focused on the anatomy and the clinical importance of the ninth cranial nerve called the glossopharyngeal nerve (or cranial nerve IX or simply CN IX).

The glossopharyngeal nerve is a mixed nerve that consists both of the motor and sensory fibers that rise from its nuclei[3]. This nerve has altogether 4 nuclei that are located in the medulla oblongata[4]: