Question

Describe what happens in the alveoli

Answer 1

hwre is your answer

Alveoli are tiny air sacs in your lungs that take up the oxygen you breathe in and keep your body going.

Although they're microscopic, alveoli are the workhorses of your respiratory system.

When you breathe in, the alveoli expand to take in oxygen. When you breathe out, the alveoli shrink to expel carbon dioxide.

Answer 2

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The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out. Oxygen breathed in from the air passes through the alveoli and into the blood and travels to the tissues throughout the body.