How can the cochlear amplifier be realized by the outer hair cells which have nothing to push against

摘要: A theoretical consideration is given on how the constituent cells of cochlear partition can amplify its motion and increase momentum without resorting to external forces, it leads a micromechanical model that explains role in active amplification. The triangle composed outer hair cell, phalanx Deiters cell reticular lamina forms mechanical unit stores up releases strain. When contract region along partition, strain accumulates causing deformation pushes down basilar membrane, hence appears as transverse pressure drives membrane. increases at cost neighboring regions, total not altered by internal forces generated cells. produce frequency-response curve compares favorably with experimental data.