Respiratory system

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Across
  1. 6. Carry air to small sacs called alveoli
  2. 7. Two organs that remove oxygen from the air and pass it into your blood
  3. 8. Tiny sacs in the lungs where the exchange of oxygen and carbon dioxide takes place
  4. 9. Hollow organ that allows you to talk and make sound when air moves out
Down
  1. 1. Hollow areas between the bones in your head that help regulate the temperature and humidity of the air you inhale
  2. 2. Tube that delivers air from your mouth and nose to the trachea
  3. 3. Opening that pull air from outside you body into your repository system
  4. 4. Passage connecting your throat and lungs
  5. 5. Humidifies, warms, and removes particles from the air before it enter the airways
  6. 7. Carries air from your lungs