<prompt> Sensory supply of tongue is by all except?7th Cranial nerve5th Cranial nerve8th Cranial nerve9th Cranial nerve  <response>: Ans. C. 8th Cranial nerveInnervation of taste and sensation is different for the anterior and posterior part of the tongue because they are derived from different embryological structures pharyngeal arch 1 and pharyngeal arches 3 and 4, respectively.a. Anterior two thirds of tongueTaste: chorda tympani branch of the facial nerve CNVIISensation: lingual branch of the mandibular V3 division of the trigeminal nerve CNVb. Posterior one third of tongue:Taste and sensation: glossopharyngeal nerve CNIXc. Base of tongueTaste and sensation: vagus nerve CNX 