basilar membrane
"But why is structure preservation so important? Imagine if the cochlea would be a guitar, then the basilar membrane is like the guitar strings. Any damage to the basilar membrane is like snapping a guitar string: once the string is snapped, it will never be able to vibrate the same way. And this damage can also affect the nerve cells, sometimes irreversibly affecting the ability to hear even after receiving a cochlear implant."
"The basilar membrane forms one part of the boundary between the two partitions. The basilar membrane is like a flexible membrane, but which is narrow and stiff at the base of the cochlear spiral, but wide and flexible at the apex"
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