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  2. Quick Facts: Ear, Nose, and Throat Disorders/
  3. Biology of the Ears, Nose, and Throat/
    Biology of the Ears, Nose, and Throat
    • Ears
      • What are the ears?
        • What are the main parts of the ears?
      • How do the ears work?
        • How does hearing work?
        • How does balance work?
      • What can go wrong with the ears?
    • Nose and Sinuses
      • What is the nose?
      • What are the sinuses?
      • How does the nose work?
      • What can go wrong with the nose and sinuses?
    • Throat
      • What is the throat?
        • What are the main parts of the throat?
      • How does the throat work?
      • What can go wrong with the throat?
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