<prompt> The taste sensation to the anterior 23rd of the tongue is subserved by?Chorda tympani nerveJacobsons nerveGlossopharyngeal nerveTrigeminal nerve  <response>: The sensory nerve fibers from the taste buds on the anterior two-thirds of the tongue travel in the chorda tympani branch of the facial nerve, and those from the posterior third of the tongue reach the brainstem the glossopharyngeal nerve. The fibers from areas other than the tongue eg, pharynx reach the brain stem the vagus nerve. Also Know: Jacobsons Nerve also known as the Tympanic Nerve, is the somatic sensory nerve of the middle ear and the efferent branch of the Glossopharyngeal nerve CN IX to the Parotid Gland. 