<prompt> True about the Tongue isExtrinsic intrinsic muscles of tongue supplied by lingual nerveTaste fibres from anterior 23 of the tongue is suppliedby facial nervePosterior 13 of the tongue drain into Submandibular lymph nodesPosterior 13 of the tongue is supplied by vagus nerve  <response>: B Taste fibres from anterior 23 of the tongue is supplied by facial nerve Chorda tympani is the nerve of taste and therefore taste papillae for anterior 23rd of tongue except circumvallate papillae. Glossopharyngeal nerve is for both general sensation and taste from posterior l3rd of tongue including circumvallate papillae. The sense of taste is mediated through the facial, glossopharyngeal and vagal nerves. Taste buds are located in: The foliate papillae along the lateral margin of tongue. In the fungiform papillae throughout the dorsum of tongue. In the circumvallate papillae at junction of dorsum and base of tongue. Taste buds are also located in the palate, epiglottis, larynx and esophagus. Taste sensation are carried by: From Ant 23rd of tongue-- through chorda tympani branch of facial nerve. Post 13rd of tongue--lingual branch of 10th nerve. Afferents from palate travel with the GSPN to the geniculate ganglion and thence via the facial nerve to brain stem. From larynx, epiglottis and esophagus -- Through internal branch of Sup. Laryngeal nerve of vagus. 