The function of surfactant is to

A) cause capillaries to adhere closely to the alveolar surfaces to promote gas exchange.
B) cause diffusion.
C) reduce the surface tension in the fluid coating alveolar surfaces to prevent alveolar collapse.
D) phagocytize particulate matter that has eluded the respiratory defenses and reached the alveoli.
E) None of the answers are correct.


C) reduce the surface tension in the fluid coating alveolar surfaces to prevent alveolar collapse.

Anatomy & Physiology

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