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Card 16

Front

What does the surfactant do?

Back

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Card 17

Front

Why is the alveolus very efficient at gas exchange?

Back

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Card 18

Front

What are alveoli walls made of?

Back

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Card 19

Front

What does the extensive capillary network surrounding the alveoli do?

Back

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Card 20

Front

What are capillary walls?

Back

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Card 21

Front

What are capillary walls?

Back

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