Use of the chinchilla as a model of middle ear infection in auditory research ... studies command substantial interest 1. The tympanic bulla is easily palpated on the skull of a chinchilla.

The outer ear includes two parts: The tympanic membrane (eardrum ... including Meniere's disease, tinnitus, and infection. A healthcare provider can diagnose some ear problems by examining ...

The tick may have bitten the woman's eardrum, with enzymes in its saliva causing severe pain, hearing loss and tinnitus.