<prompt> Vestibular function is assessed by -Fistula testHallpike manaeuverCaloric testAll of the above  <response>: Ans. is d i.e., All of the above Vestibular systemo The vestibular system contributes to balance and to the sense of spatial orientation.o It is a sensory system that provides the leading contribution about movement and sense of balance.o It includes the labyrinth semicircular canals and otolith : utricle sacules of the inner ear and is situated in the vestibulum in the inner ear.o The symptoms of vestibular dysfunction are vertigo, dizziness and imbalance.o There are several tests of vestibular function :-Clinical testsLaboratory testo Spontaneous nystagmuso Fistula testo Romberg testo Gaito Past- pointing and fallingo Hallpike manaeuver Positional testo Caloric test Cold caloric test with ice cold water modified Kobraks test Fitzgerald - Hallpike test Bithermal caloric testTemperature of water used is - 7 degC from normal body temperature. Cold-air caloric test by Dundas- Grant method. Done in case of perforation of tympanic membrane.o Electronystagmographyo Optokinetic testo Rotation testo Galvanic testo Posturography 