How do the structures of the alveoli and capillaries support the function of gas exchange?
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hbenenn 4 months ago
Светило науки - 8 ответа - 0 помощи
The walls of the alveoli share a membrane and with the capillaries. That's how close they are. This lets oxygen and carbon dioxide diffuse, or move freely, between the respiratory system and the bloodstream. Oxygen molecules attach to red blood cells, which travel back to the heart.

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