The Collapse of Alveoli During Expiration Is Prevented by the

question 28

Multiple Choice

The collapse of alveoli during expiration is prevented by the

• A) positive pressure in the pleural cavity
• B) elastic recoil of the alveoli
• C) thin film of serous fluid that lines the alveoli for lubrication
• D) thin film of surfactant that lines the alveoli
• E) cartilage that holds the alveoli open

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