function of hair cells in hearing
(more on hair cells on the next page) Roughly in parallel with the row of 3,500 inner hair cells, three rows of outer hair cells (OHCâs) are situated along the same membrane. The main function of the inner hair cells is to pick up the membraneâs vibrations (like a microphone). The main function of the outer hair cells is to feed back mechanical energy to the membrane in order to amplify the resonance peaks, actively increasing the systemâs sensitivity by up to 60dB(*4C).