Friday, October 19, 2012


You have two ears, one on each side of your head. This is how you know which direction a sound is coming from. The ears capture sound vibrations and send them to the brain.

The ear has three parts: the outer ear, the middle ear and the inner ear.
The outer ear is external.

  • It captures sound through the pinna.
  • The sound travels through the ear canal to the middle ear.
The middle ear is internal.
  • The eardrum and three small bones.
  • When sound reaches the eardrum, it vibrates.
  • The small bones make the sound louder.
The inner ear is inside your head.
  • It consists of the cochlea.
  • The cochlea receives the sound vibrations.

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