Respiratory System

12345678910111213141516171819202122232425
Across
  1. 5. muscular tube posterior to nasal and oral cavities (swallowing refelexes)
  2. 6. muscle that helps with respiration by contraction when inhaling
  3. 8. skeletal structure that protects the heart and lungs
  4. 9. lubricates the pleural surface and makes it easy for them to slide over each other during lung inflation and deflation
  5. 12. protected by rib cage, pleural membrane, and serous fluid
  6. 13. the sum of two or more volumes (lung capacity)
  7. 14. tiny air sacs made of simple squamous tissue where oxygen and carbon dioxide exchange occurs
  8. 16. mucous membranes with epithelial tissue with goblet cells that produce mucous to trap bacteria and debris
  9. 18. this structure blocks dust and debris from entering
  10. 19. speaking and air passages
  11. 20. smallest branches of the 'bronchial tree' inside the lungs; lacks cartilage support
  12. 21. constriction of bronchioles , usually caused by allergens
  13. 22. opening of the larynx
  14. 23. destroy pathogens that did not get caught by mucous
  15. 24. warms and humidifies air that is breathed in
Down
  1. 1. frequent in newborns who have not produced the surfactant that reduces the surface tension of the fluid in the lungs
  2. 2. total air lungs can hold
  3. 3. structural features that supports the trachea to keep it open for air passage
  4. 4. inflammation of the lining of bronchial tubes, which carry air to and from the lungs
  5. 5. membrane that surrounds heart
  6. 7. covers the inside surface of the rib cage and spreads over the lungs as well
  7. 10. flap on top of larynx that folds down to prevent food and liquid entry
  8. 11. thin folds of tissue that are pulled over the glottis and vibrate during speech
  9. 15. amount of air in one breath
  10. 17. air that remains in the lungs after the most forceful exhale
  11. 25. a condition in which the air sacs of the lungs are damaged and enlarged, causing breathlessness