The Respiratory System crossword puzzle

12345678910111213
Across
  1. 2. what is another name for Pharynx
  2. 5. what is the name of the gas that we breathe
  3. 7. what is the most important organ in the respiratory
  4. 8. how many lungs do you have
  5. 12. another name for the voice box
  6. 13. we use this to breathe in air
Down
  1. 1. what is the name of tubes that are connected to
  2. 3. lungs
  3. 4. when we breathe out air
  4. 6. when we breathe in air
  5. 9. What is another name for the trachea
  6. 10. what is the color of the lungs
  7. 11. Passage connecting your throat and lungs