<prompt> Shirmers test is used to assessGreater superficial petrosal nerveStapedial branchChorda tympani nerveStylohyoid branch  <response>: Answer is A Greater superficial petrosal nerve: Shirmers test is done to assess the integrity of Greater Superficial Petrosal Nerve Branch of Facial Nerve by assessing the Lacrimation function. Topographical Test for Facial Nerve Function Branch Nerve assessed Shirmers test Greater Superficial Petrosal Nerve GSPN Stapedial Reflex Accoustic Reflex Stapedial branch Branch to stapedius Electrogustometry Taste testing Chorda Tympani Branch Salivary Flow Rate Chorda Tympani Branch 