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Why alveoli are richly supplied with blood vessels? |
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Answer» Alveoli provide a surface where the exchange of gases can take place. the wall of alveoli contain extensive network of the blood vessels Because alveoli provide a surface where exchange of gasses takes place. Carbon dioxide dissolved in blood is released in alveoli and oxygen in the alveolar air is taken up by the blood to reach other body cells. Alveoli are richly supplied with blood so that exchange of gases can take place btw the membrane of alveoli and blood capillaries. Alveoli are richly supplied with blood vessels so that the exchange of gases can take place in higher composition. |
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