Respiratory System

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Across
  1. 3. Main organ for gas exchange
  2. 6. Two layers of serous membrane with high surface tension that keep lungs against the inside of ribcage
  3. 8. The amount of air you can breathe out after a normal expiration
  4. 9. Muscles in the rib cage that assist with breathing
  5. 10. The amount of air we breath in and out in a normal breath
  6. 11. Voice box
  7. 13. Infection of the lungs which fills them with fluid
  8. 14. sight of gas exchange in the lungs
  9. 16. Another term for breathing
  10. 18. Infection of larynx - loss of voice
  11. 21. Gas exchange between capillaries and tissue cells
  12. 22. Bad for your lungs. Makes you look like an idiot.
Down
  1. 1. Measure the pH of blood to determine CO2 levels
  2. 2. Blockage of the openings to the sinuses
  3. 4. Windpipe
  4. 5. Carries oxygen in red blood cells
  5. 7. Gas exchange between capillaries and alveoli
  6. 12. Also called inhalation
  7. 15. Breathing out
  8. 16. The maximum amount of air that can be moved in and out of the lungs
  9. 17. Top of the throat. Food and air both pass through
  10. 19. Muscle that controls breathing
  11. 20. Tonsils become inflamed and enlarged