Question

Describe the mechanism of exchange of gases in the alveolus of the lung?explain.

Answer 1

The alveoli ("many alveoli", "onealveolus") are the sites of gas exchange in the lungs. They are tiny air sacks sometimes described as being cauliflower-shaped. Oxygen diffuses across the lining of the alveoli and blood capillaries into and into red blood cells. Carbon dioxide diffuses from the blood to thealveoli.