Respiratory System

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Across
  1. 1. The tiny air sacs where gas exchange occurs in the lungs.
  2. 4. The large passageway in the chest carries air from the trachea to each lung.
  3. 5. The process of taking in oxygen and expelling carbon dioxide.
  4. 8. The vocal cords are located in this structure.
  5. 9. The muscle that helps with breathing, is located below the lungs.
Down
  1. 1. The condition where the airways are inflamed and narrowed, causing difficulty in breathing.
  2. 2. The protective flap that covers the windpipe when swallowing food.
  3. 3. The main respiratory organ that exchanges gases in the body.
  4. 6. The part of the throat that connects the mouth and nasal passages to the larynx and esophagus.
  5. 7. The tube that connects the throat to the lungs.