Grandma told the grandkids that their "PaPa" was right about the "little hammer and other things" being in their heads. She then added that their inner ears look like snails. This fluid-filled structure that looks like a snail is the

Question

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The cochlea is the part of the inner ear that is shaped like a snail and is responsible for converting sound vibrations into electrical signals that the brain can interpret as sound.

Grandma Told the Grandkids That Their "PaPa" Was Right About