Across
- 1. Means "cells"
- 3. Is a pale yellowish liquid that is about ninety-two percent water
- 6. A special kind of protein containing iron
- 9. They receive blood coming into the heart
- 10. Each alveolus is surrounded by a network of tiny blood vessels called
- 12. Is the inflammation or swelling of the breathing passages, the pathway between the nose and the lungs
- 14. Means "white"
- 15. Exhalation
- 18. They pump blood out of the heart
Down
- 2. Is a long-term disease of the lungs caused by prolonged exposure to respiratory irritants like tobacco chemicals and air pollutants such as factory fumes or coal
- 4. Is a chronic and allergic condition that makes the breathing airways narrow and swollen, and causes them to produce extra mucus
- 5. Allows for exchange of gases underwater
- 7. Inhalation
- 8. The warmed, moistened, ad filtered air moves through a muscular tube in your upper throat called
- 11. Is a flap of tissue that closes the entrance to the rest of the respiratory system when you swallow
- 13. Is the physical action of taking in oxygen into, and releasing the waste carbon dioxide out of the lungs
- 16. Refers to any infection of the lungs caused by bacteria, virus, fungi, or protozoa in rate conditions
- 17. Air that you breathe is filtered though the two openings called
- 19. Means "red"
- 20. Found in land animals