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Exam (elaborations)

1600 Exam 4 - Respiratory and Acid/Base exam

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1600 Exam 4 - Respiratory and Acid/Base exam

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Medicine
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Institution
Medicine
Course
Medicine

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Uploaded on
November 12, 2025
Number of pages
22
Written in
2025/2026
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1600 Exam 4 - Respiratory and Acid/Base


1. gas exchange: The primary function of the lungs is .


2. ventilation: getting air to the tissues is called


3. perfusion: getting blood to the tissues is called


4. diffusion: the movement of O2 and CO2 in the body is called


5. nasopharynx, oropharynx, and laryngopharynx: The 3 parts of the upper airway are:


6. larynx, trachea, bronchi, bronchipulmonary segments, and bronchioles: The 5


parts of the lower airway are:

7. cilia: line the trachea and bronchi; defense against invaders


8. 300 million: There are approximately alveoli


9. alveoli: grapelike clusters of air filled sacs


10. gas exchange: type 1 alveoli cells are for:
1/8

,11. surfactant: type 2 alveoli cells are for:


12. surfactant: a chemical substance that keeps the alveoli from collapsing


13. 3: The right lung has lobes.


14. 2: The left lung has lobes


15. bronchial artery: The system supplies oxygenated blood to lungs and pleura


16. pulmonary artery: The system is a vast network of capillaries that allows for gas exchange


17. proprioceptors: are sensitive to exercise


18. chemoreceptors: respond to changes in pH and pCO2


19. baroreceptors: respond to changes in BP


20. gravity: Blood flow to alveoli is affected by .


21. fluid volume in lungs, fluid shifts, interstitial edema, and alveolar edema: 4


2/8

, Factors affecting perfusion

22. 25: % of pulmonary capillaries are perfused at rest


23. 22/8 to 25/8 mm Hg: Normal pressure in the pulmonary capillary network is: to


24. minimal: Pulmonary blood flow in zone 1 has perfusion


25. intermittent: Pulmonary blood flow in zone 2 has perfusion


26. continual: Pulmonary blood flow in zone 3 has perfusion


27. 4: Normal ventilation (VA) is L/min


28. 5: Normal perfusion (Q) is L/min


29. 0.8: Normal VA/Q ratio is


30. high V/Q, low V/Q, or shunt: Ventilation/Perfusion imbalance may be because of: (3)




3/8

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