The Respiratory System

3. Protein responsible for transporting oxygen in the blood of vertebrates.
7. Respiration that includes breathing movement, exchange of gases in lungs, transport of gases by blood and exchange of gases by tissue.
8. Process in which diaphragm contracts, volume increases, and pressure decreases.
9. Tube reinforced by rings of cartilage, extending from the larynx to the bronchial tubes and conveying air to and from the lungs; the windpipe.
11. Causes emphysema and chemical burning of the lungs.
12. System of chambers above the hard palate of mammals where air is warmed, moistened, and filtered.
13. Disorder in which breathing stops for periods longer than 10 seconds during sleep.
15. Where gas exchange in the lungs between alveoli and the bloodstream.
17. Respiration that includes metabolic processes whereby certain organisms obtain energy from organic molecules.
18. Respiratory condition marked by spasms in the bronchi of the lungs, causing difficulty in breathing.

1. Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.
2. Condition in which the air sacs of the lungs are damaged and enlarged, causing breathlessness.
4. Process in which diagphragm relaxes, volume decreases, and pressure increases.
5. First airway branches that no longer contain cartilage; terminate at the alveoli.
6. P1*V1 = P2*V2
10. Enlarged upper end of the trachea below the root of the tongue; the organ of voice.
14. Large, concave muscle attached to the rib cage at bottom of the chest that contrals inspiration and expiration.
16. Primary organ of the respiratory system.