Across
- 3. A condition in which the airways narrow and swell and possibly create extra mucus.
- 6. A biological system consisting of specific organs and structures used for gas exchange in animals and plants.
- 9. The centerpiece of your respiratory system.
- 10. The chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table.
- 11. Tubes from mouth and nose to the trachea that delivers air.
Down
- 1. tubes Tubes located at the bottom of the windpipe that connects into each lung.
- 2. The state of steady internal, physical, and chemical conditions maintained by living systems.
- 4. A chemical compound occurring as a colorless gas with a density about 53% higher than that of dry air.
- 5. Hallway that connects the throat and the lungs.
- 7. A lung infection that happens when an infection makes the air sacs in your lungs to fill with fluid or pus, which may cause it to become solid.
- 8. Hollow areas between the bones in the head that regulate the temperature and humidity of the air inhaled.