Self-Quiz respiratory system

Increase in alveolar pressure 5 which of

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Unformatted text preview: external intercostals → decrease in size of thoracic cavity → increase in alveolar pressure (c) contraction of diaphragm and external intercostals → decrease in size of thoracic cavity → decrease in alveolar pressure (d) relaxation of diaphragm and external intercostals → increase in size of thoracic cavity → increase in alveolar pressure (e) contraction of diaphragm and external intercostals → decrease in size of thoracic cavity → increase in alveolar pressure 5. Which of the following does NOT help keep air passages clean? (a) nostril hairs (b) alveolar macrophages (c) capillaries in the nasal cavities (d) cilia in the upper and lower respiratory tracts (e) mucus produced by goblet cells 6. The inflation reflex (a) is initiated by overinflation of the lungs (b) ses temporary apnea cau (c) prolongs inspiration (d) results from irritants in the breathing passages (e) involves input from muscle and joint proprioceptors 7. How does hypercapnia affect respiration? (a) It increases the rate of respiration. (b) decreases the rate of respiration. It (c) It causes hypoventilation. (d) does no...
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This document was uploaded on 03/30/2014.

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