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Where does the transduction of auditory information into neural signals primarily occur?

Question

Where does the transduction of auditory information into neural signals primarily occur?

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Solution

The transduction of auditory information into neural signals primarily occurs in the cochlea, a part of the inner ear. Here's a step-by-step breakdown:

  1. Sound waves enter the ear and travel through the ear canal to the eardrum.
  2. The sound waves cause the eardrum to vibrate. These vibrations are then transferred to the three small bones of the middle ear: the malleus, incus, and stapes.
  3. The stapes bone pushes on the oval window, a membrane that separates the middle ear from the inner ear, and transfers the vibrations into the cochlea.
  4. Inside the cochlea, there are thousands of tiny hair cells. The vibrations cause the fluid in the cochlea to move, which in turn causes these hair cells to move.
  5. The movement of the hair cells triggers an electrical signal in the auditory nerve.
  6. This electrical signal is then sent to the brain, where it is interpreted as sound.

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