A student took these notes in class:-Inner ear-connected to the stirrup and auditory nerve-Shell-like and filled with fluid-Changes vibrations into signals

The cochlea is a fluid-filled, shell-shaped structure in the inner ear. Vibrations from the stirrup move the fluid, and sensory cells in the cochlea convert that movement into signals carried by the auditory nerve. The auditory nerve carries the signals but does not convert vibrations into them.

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