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Why lungs and heart is covered …

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Why lungs and heart is covered with blood cappilaries

Posted by Gaurav Shukla 5 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 5 months ago

Alveoli are covered with blood capillaries so that the exchange of gases can take place between the membranes of the alveoli and the surrounding capillaries. The blood capillaries covering alveoli have a low oxygen and high carbon dioxide concentrations. This allows oxygen to diffuse into the blood and carbon dioxide to diffuse out of the blood.

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