Respiratory System

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Across
  1. 5. Smaller branches of each bronchus
  2. 6. Breathing in
  3. 7. The right lung has three of these while the left lung has only two
  4. 9. Breathing out
  5. 10. Lungs are separated from the abdominal cavity by this muscular structure
Down
  1. 1. Another name for our throat
  2. 2. A two layered sac that covers each lung
  3. 3. Another name for voice box
  4. 4. Small grape-like cluster at the end of the bronchioles where oxygen and carbon dioxide are exchanged
  5. 8. Another name for our windpipe
  6. 9. This is a piece of cartilage that acts like a lid over the larynx