<prompt> What is true about chorda tympani?Postganglionic sympatheticPostganglionic parasympatheticPreganglionic parasympatheticPostganglionic parasympathetic  <response>: Chorda tympani from facial nerve provides preganglionic secretomotor fibres parasympathetic fibres to the glands. Ref : B D Chaurasias Human Anatomy, seventh edition , volume 3 , pg. no., 136. 