EXAM-2009F-4 - Examination IV VPHY 3100 Elements of...

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Examination IV VPHY 3100 Elements of Physiology December 8, 2009 1:25 - 2:15 p.m. Multiple Choice (2.5% each) Choose the best answer. ____________________________________ 1. The major lining cells for the alveolar wall is: A. macrophages. B. *type I alveolar cells. C. type II alveolar cells. D. type III alveolar cells. 2. Gas exchange occurs within the: A. conducting zone. B. *respiratory zone. C. terminal bronchioles. D. bronchi. 3. Which of the following statements about pleura is NOT true? A. *The pleural membrane separates the thoracic cavity from abdominal cavity. B. The pleural space is a close-type compartment. C. The intrapleural pressure is always lower than the intrapulmonary pressure. D. The pleural space is located between two layers of pleura. 4. Contraction of the inspiratory muscles increases: a. the vertical distance of the abdominal cavity. b. the volume of thoracic cavity. c. the intrapleural pressure. d. the pressure gradient between the alveolar space and environment. A. B. C. D. E. 5. The elasticity of the lungs is: a. contributed by the elastin fibers in the alveolar walls. b. contributed by the surface tension. c. the reciprocal of the lung compliance. d. the same as the distensibility of lungs. A. a only. B. C. D. 1
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6. Which of the following statements about surface tension/surfactants is NOT correct? A. Pressure in alveoli is directly proportional to surface tension. B. Pressure in alveoli is inversely proportional to radius of alveoli C. *The major component of the pulmonary surfactants is a protein. D. Pulmonary surfactants are produced by the type II alveolar cells. 7. Emphysema is most likely to be caused by: A. allergy. B. COPD. C. surfactant insufficiency. D. *cigarette smoking. 8. FEV 1 is used to diagnose: a. asthma b. pulmonary obstructive disorders c. pulmonary fibrosis d. pulmonary restrictive disorders A. a only. B. C. c only. D. 9. The first breath is difficult for a full-termed neonate because that: A. there is a pulmonary surfactants insufficiency. B.
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This note was uploaded on 01/17/2010 for the course VPHY 3100 taught by Professor W during the Spring '05 term at University of Georgia Athens.

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EXAM-2009F-4 - Examination IV VPHY 3100 Elements of...

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