the tympanic membrane.-middle-ear track.-upper air passages.-hearing tests.-oculomotor tests.-labyrinthine reactions.-postural , caloric , galvanic tests.-differentiation between destructive and non-destructive disturbances of labyrinth.-discrimination between peripheral and central lesions.-vertigo associated with acute , non-perforative otitis media , with chronic otitis media , with labyrinthine fistula , with otosclerosis , post-suppurative adhesions ;
C0041445
tympanic membrane
C0013455
middle-ear