Respiratory System

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Across
  1. 4. Two tubes that split off from the trachea and lead to the lungs
  2. 6. The main organ of the respiratory system
  3. 7. A place where air enters the body along with food
  4. 8. Transfer oxygen to red blood cells and take carbon dioxide from red blood cells
  5. 9. The passageway to the lungs
Down
  1. 1. The muscle that lets air into the lungs
  2. 2. Tiny tubes in the lungs that lead to the alvioli
  3. 3. The throat
  4. 5. The primary place where air enters the body
  5. 10. Tiny hair-like tissues that help remove pollution from the lungs