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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 is the volume of air moved into and out of the lungs in a single breath during unforced breathing called?
2. Air flows between alveoli through pores.
3. The force that moves air into and out of the lungs is the difference in pressure between the atmosphere and alveolus.
4. Food is prevented from entering the respiratory tract by the ________, which is/are located in the ________, the entry to the larynx.
5. Alveolar macrophages function to engulf pathogens and foreign particles that have been inhaled into the lungs.
6. Which of the following chemicals will NOT result in a decrease in airway resistance?
7. Which of the following is a measure of the distending force across the lungs?
8. The difference between what two pressures drives air into and out of the lungs?
9. The tidal volume and inspiratory reserve volume together make up which of the following?.
10. The difference between intrapleural pressure and intra-alveolar pressure is ________.
11. What is the term for the volume of air moved into the lungs every minute?
12. The conducting zone adjusts the temperature and humidity of the air entering the respiratory tract.
13. The transition from the conducting to the respiratory zone in the lungs occurs at the ________.
14. The distending pressure across the lungs is the intrapleural pressure.
15. The muscles of respiration are ________.
16. The elasticity of the lungs facilitates expansion during inspiration.
17. What is the term for the volume of air that reaches the respiratory zone each minute?
18. Which of the following measurements cannot be determined by a spirometer?
19. How do tractive forces affect the airways during inspiration.
20. What is the function of ciliated cells in the conducting zone?
21. The mucus escalator involves cilia causing movement of mucus with its trapped particles toward the alveoli where the particles can be engulfed by alveolar macrophages.
22. What benefit are corticosteroids in the treatment of asthma?
23. What type of cell in the respiratory tract functions in phagocytosis of inhaled pathogens and foreign particles?
24. Which of the following pressures is lower during inspiration than during expiration?
25. In an obstructive disease, the lungs can become overinflated because the difficulty in ________ tends to ________.

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