Human Biology (MindTap Course List)
Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Textbook Question
Chapter 10, Problem 6SQ

Breathing _______.

  1. a. ventilates the lungs
  2. b. draws air into airways
  3. c. expels air from airways
  4. d. causes reversals in pressure gradients
  5. e. all of the above
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The partial pressure of carbon dioxide is 45 mm Hg inthe blood and 40 mm Hg in the alveoli. What happens tothe carbon dioxide?a. It diffuses into the blood.b. It diffuses into the alveoli.c. The gradient is too small for carbon dioxide todiffuse.d. It decomposes into carbon and oxygen
The largest air passages that engage in gas exchange with the blood are:- a. the respiratory bronchioles. b. the terminal bronchioles. c. the main bronchi. d. the alveolar ducts. e. the alveoli
The rate of diffusion would increase by? A) an increase in airway resistance  B) a decrease in lung compliance  C) a decrease in alveolar surface area D) a decrease in alveolar barrier thickness
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