We just learned about the Semicircular Canals.
Another part of the bony labryinth in the inner ear is the Cochlea.
This is a spiral that sounds go into, and there are little hairs inside the spiral that send signals to the brain telling it what sounds are being heard.
The different parts of the spiral help the ear listen to different types of sounds.
At the opening the spiral collects sounds that are high pitched like a whistle.
As the spiral goes in further the sounds get lower, more like a big drum beating.
All of these different sounds get sent to the brain to hear all the different highs and lows.
The name cochlea comes from the greek word for spiral snail shell.
(from: wikipedia - cochlea)
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