Respiratory system

123456789
Across
  1. 4. Connects Nose And Mouth canal for breathing and swallowing
  2. 7. Two large tubes that carry air from windpipe to lungs
  3. 8. Take in air and convert it into carbondioxide
  4. 9. Warms and also Humidifies air
Down
  1. 1. Voice box canal that helps produce sound
  2. 2. Muscle that separates the chest from the abdomin
  3. 3. Conects larynx to lungs for breathing
  4. 5. Humidifies and filters dust out of air
  5. 6. Smallest airways that deliver air to alveoli