Graphs showing the response of the <a href="https://en.wikipedia.org/wiki/basilar_membrane" class="extiw" title="en:basilar membrane">basilar membrane</a> to a pure tone in (a) a healthy ear, and (b) an ear with a dead region in the cochlea.
<a href="//commons.wikimedia.org/wiki/User:Inductiveload" title="User:Inductiveload">Inductiveload</a>
<span class="int-own-work" lang="en">Own work</span>