Ear Canal Anatomy
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Questions and Answers

Which bone is in contact with the eardrum?

  • Incus
  • Cochlea
  • Stapes
  • Malleus (correct)

What is the shape of the stapes bone?

  • Triangle
  • Rectangle
  • Horseshoe (correct)
  • Circular

Where does the stapes bone tap the vibrations?

  • Inner ear
  • Middle ear
  • Oval window of the cochlea (correct)
  • Eardrum

What is the outer surface of the cochlea lined with?

<p>Microscopic hairs (C)</p> Signup and view all the answers

How do the vibrations of the sound waves affect the cochlea?

<p>Cause the fluid to vibrate (B)</p> Signup and view all the answers

What determines how the hairs are moved in the cochlea?

<p>Source of the sound (C)</p> Signup and view all the answers

What happens when the hairs in the cochlea move?

<p>They activate electrical signals (C)</p> Signup and view all the answers

Where are the electrical signals interpreted as sound?

<p>Brain (D)</p> Signup and view all the answers

What is the function of the oval window of the cochlea?

<p>Separates the middle ear and inner ear (C)</p> Signup and view all the answers

What is the cochlea filled with?

<p>Fluid (D)</p> Signup and view all the answers

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