Respiratory System Review

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