Question

By What Alveolar Sacs are Protected?
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Answer 1

Answer:

Essentially, the capillaries are like a netting covering the alveolar sacs. The place where the capillary tissue meets the alveolar tissue creates an extremely thin layer that molecules can pass through. It is called the respiratory membrane.

Answer 2

Explanation:

Essentially, the capillaries are like a netting covering the alveolar sacs. The place where the capillary tissue meets the alveolar tissue creates an extremely thin layer that molecules can pass through. It is called the respiratory membrane.

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