Question

Mucous membrane of tongue and pharynx is innervated by:
a. Facial nerve
b. Pathetic (Trochlear) nerve
c. Glossopharyngeal nerve
d. Trigeminal nerve

Answer 1

Hint: The cranial nerve receives input from the final and special sensory fibers within the back of the throat.

Complete Answer:
a. The seventh cranial nerve carries axons of kind independent agency, general physical corticopetal, to the skin of the posterior ear. The seventh cranial nerve additionally carries axons of kind GVE, general visceral centrifugal, that innervate the organ, submandibular, and lacrimal glands, additionally mucous membrane of cavum.

b. Containing each sensory and motor elements, the cranial nerve provides corporal motor innervation to the stylopharyngeus muscle, visceral motor innervation to the salivary gland, and carries centripetal sensory fibers from the posterior third of the tongue, pharynx, and cavity.

c. The nerve(CN-IX) or the cranial nerve or glossopharyngeal originates from the medulla of the brain-stem. It's a mixed nerve as a result of it's each sensory and motor performance. It innervates the muscles still because the secretion membranes of the tongue and throat. It brings the feeling of style from the posterior 1/3rd a part of the tongue and conjointly stimulates the secretion of spittle.

d. Wallenberg syndrome (lateral medullary syndrome) could be a clinical demonstration of the anatomy of the trigeminal nerve, summarizing however it processes sensory data. A stroke typically affects just one facet of the body; loss of sensation because of a stroke are going to be lateralized to the correct or the left facet of the body.

Hence option:’C’ is the correct answer.

Note: The cranial or glossopharyngeal nerve provides motor innervation to the stylopharyngeus muscle and therefore the superior snake tubular cavity muscle.