Editing Lever (section)

== Compound lever ==
{{Main|Compound lever}} 
A [[compound lever]] comprises several levers acting in series: the resistance from one lever in a system of levers acts as effort for the next, and thus the applied force is transferred from one lever to the next. Examples of compound levers include scales, nail clippers, and piano keys.

The ''[[malleus]]'', ''[[incus]]'', and ''[[stapes]]'' are small bones in the [[middle ear]], connected as compound levers, that transfer sound waves from the [[eardrum]] to the [[oval window]] of the [[cochlea]].