Surfactant Helps to Prevent the Alveoli from Collapsing by

question 45

Multiple Choice

Surfactant helps to prevent the alveoli from collapsing by .

• A)warming the air before it enters
• B)protecting the surface of alveoli from dehydration and other environmental variations
• C)interfering with the cohesiveness of water molecules,thereby reducing the surface tension of alveolar fluid
• D)humidifying the air before it enters

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