Tuesday, November 18, 2008

Stereocilia

  • Zebrafish regenerate them all the time.
  • You have them in your ear.
  • Loud noises break them.
  • They are small hair-like cells.
  • You have about 16,000 of the in your left ear.
  • The respond to vibrations to help you keep your balance and to determine where a sound is coming from.
  • Can you tell where a sound is coming from as well as ever?
  • Soft noises cause these hair cells to shift at their bases.
  • Loud sounds can cause them to break.
  • Once they are gone, they never grow back in humans.
  • Stereocilia damage is a cause of tinnitus.

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