Question

how does exchange of gases take place in lung​

Answer 1

Answer:

read the explanation :---

Explanation:

During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.

Answer 2

each lung contains millions of alveoli .alveoli are the side of actual gas exchange the carbon dioxide present in the blood collecting from all parts of the body passes into the alveoli from the blood vessels while its exhaling , this carbon dioxide from the lungs this whole process takes very less time .