Respiratory System

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Across
  1. 6. On earth, gases have to ___ before they can diffuse. (Hint: “Oxygen has to get wet before it gets wet”)
  2. 11. ___ is due to parasympathetic nervous system activation.
  3. 15. What component of the respiratory system has the following function: Carries air between the pharynx and trachea; contains vocal folds for producing sounds in vocalization; prevents objects from entering the trachea.
  4. 16. What component of the respiratory system has the following function: Carries air between the larynx and the bronchi; filters warms, and moistens the inhaled air.
  5. 18. What component of the respiratory system has the following function: Regulate the rate of airflow through bronchoconstriction and bronchodilation.
  6. 19. Though the pulmonary ___, oxygenated blood moves from the lungs to the left atrium.
  7. 20. When you ___, you increase lung volume.
  8. 21. What component of the respiratory system has the following function: Carries air between the nasal cavity and the larynx; filters, warms, and moistens the inhaled air, serves as a passageway for food from the mouth to the esophagus; equalizes air pressure with middle ear via auditory tube.
  9. 22. Without ___, your lungs would collapse. *Dr. Gardner’s research friend had this injected every Friday!
  10. 25. The human brain is stimulated to breathe when ___ ___ levels change.
  11. 27. During exhalation, air pressure within your lungs is ___ than atmospheric pressure.
  12. 29. ___ zone starts at the respiratory bronchioles.
  13. 30. The release of this chemical leads to smooth muscle constriction in the lungs.
  14. 32. Through the pulmonary ___, deoxygenated blood moves from the right ventricle to the lungs.
Down
  1. 1. Where does gas exchange occur?
  2. 2. Inspiration is always ___, while exhalation is passive at rest due to elastic recoil.
  3. 3. If lungs have high ___, they can inflate easily.
  4. 4. No gas exchange occurs at the ___ zone.
  5. 5. What component of the respiratory system has the following function: Nostrils allow air to enter and exit the nasal cavity; the nasal cavity filters, warms, and moistens the inhaled air.
  6. 7. What component of the respiratory system has the following function: Carry air between the trachea and the bronchioles; filter, warm, and moisten the air.
  7. 8. Exhaling decreases lung ___.
  8. 9. ___ is due to sympathetic nervous system activation.
  9. 10. If you hold your breath then pass out, you will start breathing due to CO2 levels being ___.
  10. 12. We need to blow off CO2 to keep our blood pH regulated. If we did not breathe out CO2, we would have too many ___ ions due to CO2 binding to H2O.
  11. 13. Surfactant improves compliance in our lungs by decreasing ___ ___.
  12. 14. Surfactant gets between water and breaks apart its ___ bonds.
  13. 17. During ___, air pressure within your lungs is lower than atmospheric pressure.
  14. 23. ___ have smooth muscle and no cartilage.
  15. 24. According to Boyle’s law, and increase in volume would lead to a ___ in pressure.
  16. 25. ___ are made of hyaline cartilage and always keep the trachea open.
  17. 26. ___ means the tendency to return to initial size after distension.
  18. 28. The two skeletal muscles that we mainly use to inhale are the diaphragm and the ___ intercostals.
  19. 31. We need oxygen solely for ___ production.