Question

describe in detail what alvoli look like and what they do​

Answer 1

Answer:

Each alveolus is cup-shaped with very thin walls. It's surrounded by networks of blood vessels called capillaries that also have thin walls. The oxygen you breathe in diffuses through the alveoli and the capillaries into the blood.

Explanation:

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Answer 2

Answer:

Each alveolus is cup shaped with very thin walls .It's sorrunded by networks of blood vessels called capillaries that also have thin walls .The oxygen you breathe in diffuses through the alveoli and the capillaries into the blood .

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