<prompt> Parotid duct opensOpposite 1st mollarOpposite 2nd molarInto the papillaOpposite incisor  <response>: The duct runs forwards for a sho distance between the buccinator and the oral mucosa. Finally, the duct turns medially and opens into the vestibule of the mouth opposite to the crown of upper second molar tooth. REF.BDC SIXTH EDITION VOL NO:3 PAGE NO:110 