Respiratory System

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Across
  1. 3. The windpipe.
  2. 4. The gas our respiratory system helps us get rid of.
  3. 5. Small tubes that lead to alveoli.
  4. 7. The voice box.
  5. 8. Where oxygen and carbon dioxide exchange.
  6. 12. Inhaling and exhaling.
  7. 14. Gas needed for cellular respiration.
Down
  1. 1. Disease where bronchioles constrict making breathing difficult.
  2. 2. The throat.
  3. 4. chemical reaction releasing energy from food.
  4. 5. Tube that splits off of the trachea.
  5. 6. Material that forms the rings in the trachea.
  6. 9. Sponge-like organs that contain alveoli.
  7. 10. Air sacs in the lungs.
  8. 11. Dome-shaped muscle under the lungs.
  9. 13. Warms and filters the air coming in to our system.