Biology, asked by mou9830689517, 4 months ago

why are alveolis wrapped around with blood capillaries

Answers

Answered by nazeerfriend25

1

Answer:

Alveoli are the place where gaseous exchange takes place by diffusion.

The alveoli are surrounded by tiny blood vessels, called capillaries. The alveoli and capillaries both have very thin walls, which allow the oxygen to pass from the alveoli to the blood. The capillaries then connect to larger blood vessels, called pulmonary veins, which bring the oxygenated blood from the lungs to the heart.

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