Cochlea
- Everything you hear goes through your cochlea.
![Picture of Ear from
ptolentinobioresearch.wikispaces.com](ear.jpg)
- The sound goes in, and the cochlea acts as a frequency detector.
![Picture of Cochlea from
http://www.cidpusa.org/I10-85-cochlea2.jpg](cochlea2.jpg)
- All the sound input to your brain is based on neurons (hair
cells) in your cochlea.
- Hair cells fire more rapidly the stronger the signal at a particular
frequency.