<prompt> Glossopharyngeal nerve supplies:Glossopharyngeus muscleStylopharyngeus muscleAnterior 23 of the tongueAll of the above  <response>: Ans. b Stylopharyngeus muscle Cranial nerve IX glossopharyngeal nerve is a mixed nerve that carries afferent sensory and efferent motor information.Functions Branchial motor: supplies the stylopharyngeus muscle Visceral motor: provides parasympathetic innervations to the parotid gland Visceral sensory: carries visceral sensory information from the carotid sinus and carotid body. General sensory: provides general sensory information from the skin of the external ear internal surface of the tympanic membrane, upper pharynx and the posterior one-third of the tongue. Special sensory: provides taste sensation from the posterior one-third of the tongue including circumvallate papillae. 