Measurement of dynamic behavior of guinea pig middle ear

摘要

The middle ear transmits sound signals from the external auditory meatus to the cochlea through the mechanical linkage of the tympanic membrane and the ossicular chain. However, the dynamic behavior of the middle ear has not been well analyzed. Therefore, in order to clarify its dynamic behavior, the velocity amplitudes of the tympanic membrane and ossicles of guinea pigs are measured before, and after the manipulation of the middle and inner ear using a laser doppler vibrometer coupled to a compound microscope.