What divides the upper and lower airway?
  1. Throat
  2. Trachea
  3. Larynx
  4. Esophagus
Explanation
Answer - C - The larynx divides the upper and lower airway. The upper airway structures are those found superior to the larynx, while the lower airway begins at the level of the larynx. The larynx contains the vocal cords.
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