<prompt> Sensory supply to tonsil is by which nerve?Greater palatine nerveLesser palatine nerveVagusGlossopharyngeal nerve  <response>: Ninth nerve glossopharyngeal is the nerve of third branchial arch. It carries sensory fibres from the posterior one-third of tongue, tonsil, pharynx, middle, ear, taste fibres from posterior one-third of tongue and circumvallate papillae. Ref: BD Chaurasias HUMAN ANATOMY, Volume 3, 4th edition. 