NEET PG DENTAL EXAM

Detailed explanation-1: -Glossopharyngeal nerve lesions produce difficulty swallowing; impairment of taste over the posterior one-third of the tongue and palate; impaired sensation over the posterior one-third of the tongue, palate, and pharynx; an absent gag reflex; and dysfunction of the parotid gland.

Detailed explanation-2: -The vagal nerve (VN), the tenth cranial nerve, provides both motor and sensory innervation, and plays an important role in the pharyngeal phase of swallowing [4, 6].

Detailed explanation-3: -Special visceral efferent fibers (branchial motor) are the main motor fibers of the glossopharyngeal nerve and supply motor innervation to the stylopharyngeus muscle. This muscle is responsible for elevating the larynx and pharynx, especially during speaking and swallowing.

Detailed explanation-4: -Special visceral efferent: this component of the glossopharyngeal nerve transmits information to the stylopharyngeus muscle, a muscle originating from the third pharyngeal arch. This muscle is responsible for raising the larynx and pharynx, and functions during swallowing.