Experimental Acoustic Trauma. Tart I

Abstract

Guinea pigs were overstimulated by noise with an intensity of 150 dB. In all animals there were total defects of the organ of Corti and the tympanic mesothelium and thus the basilar membrane became quite bare. On all Reissner' and basilar membranes there were typical perforations. The basilar membrane is perforated only in one direction which is considered to be a manifestation of the mechanical possibilities of the membrane when vibrated. Both membranes are almost equally resistant to the mechanical force of acoustic trauma.