Shirmer's test is used to assess: (A) Greater superficial petrosal nerve, (B) Stapedial branch, (C) Chorda tympani nerve, (D) Stylohyoid branch
Answer is A. Answer is A (Greater superficial petrosal nerve): Shirmer's 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 Shirmer's 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