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Physiology Practice Test: The Respiratory System - Pulmonary Ventilation
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Pulmonary ventilation is the process of air flowing into and out of the lungs. It's also known as breathing.  Air flows into the lungs during inhalation and out of the lungs during exhalation. This happens because of pressure differences between the atmosphere and the gases inside the lungs.  The volume of pulmonary ventilation is the total amount of air exhaled after maximal inhalation. It's about 4800mL and varies according to age and body size.  The ease of air passage and the amount of energy required for ventilation are influenced by three physical factors: Airway... Show more
Physiology Practice Test: The Respiratory System - Pulmonary Ventilation
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25 Questions

1. What type of cell in the respiratory tract functions in phagocytosis of inhaled pathogens and foreign particles?
2. What structure bifurcates into the bronchi that enter the right and left lungs?
3. Internal respiration refers to the use of oxygen and production of carbon dioxide by cells.
4. What is the dome-shaped muscle that separates the thoracic and abdominal cavities and plays an important role in breathing?
5. Which of the following statements about respiratory system anatomy is FALSE?
6. Which of the following pressures is lower during inspiration than during expiration?
7. What is the thin barrier (0.2 μm) that allows for the efficient exchange of gases between the lungs and the blood called?
8. What are the smallest (and most distal) structures that remain a component of the conducting zone in the respiratory tract?
9. Which of the following is NOT a function of the respiratory system?
10. Which of the following measurements cannot be determined by a spirometer?
11. Which of the following becomes more abundant deeper into the conducting zone (from bronchi to bronchioles) .
12. A decrease in ________ is indicative of a restrictive pulmonary disease.
13. A(n) ________ is used clinically to measure lung volumes and rates of air flow.
14. Residual volume can be measured because the lungs are able to collapse under experimental conditions.
15. Equilibration of pressure between the intrapleural space and the alveoli will lead to which of the following?
16. Which of the following is NOT part of the response of an airway to specific allergens that initiate an asthmatic response?
17. What is the function of ciliated cells in the conducting zone?
18. What are the most common cells that line the surface of the alveoli and are therefore associated with the exchange of gases within the lungs?
19. The trachea rhythmically collapses and expands during the respiratory cycle.
20. Activation of the sympathetic nervous system causes bronchodilation.
21. As the volume of the lung increases, atmospheric pressure ________.
22. Which of the following is true when the lung volume is equal to the functional residual capacity?
23. A normal vital capacity is approximately ________ mL.
24. What is the term for the volume of air that reaches the respiratory zone each minute?
25. The bronchus diverges into two lobes, the left and right lungs.

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