The part of the human ear that converts the pressure variations associated with audible sound waves to electrical signals is

  1. A. auditory nerve
  2. B. cochlea
  3. C. eardrum
  4. D. eustachian tube

Correct Answer: B. cochlea

Explanation

The cochlea is a fluid-filled, spiral-shaped cavity in the inner ear containing hair cells that translate mechanical sound vibrations into electrical nerve impulses.

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