BRAIN
CRANIAL NERVES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
Glossopharyngeal (IX)
|
|
Hypoglossal (XII)
|
|
Vestibulicchlear (VIII)
|
|
Vagus (X)
|
Detailed explanation-1: -The glossopharyngeal nerve is the ninth set of 12 cranial nerves (CN IX). It provides motor, parasympathetic and sensory information to your mouth and throat. Among its many functions, the nerve helps raise part of your throat, enabling swallowing.
Detailed explanation-2: -Glossopharyngeal nuclei The nuclei for the glossopharyngeal nerve all lie in the inferior pontine and medullary regions of the brainstem. The nuclei that contribute to it include: (Rostral) Solitary nucleus: special sense of taste. Dorsal motor nucleus: secretomotor to the oropharynx.
Detailed explanation-3: -Containing both sensory and motor components, the glossopharyngeal nerve provides somatic motor innervation to the stylopharyngeus muscle, visceral motor innervation to the parotid gland, and carries afferent sensory fibers from the posterior third of the tongue, pharynx, and tympanic cavity.