Question

explain the mechanism of gaseous exchange at branchiole level​

Answer 1

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In the lungs, the bronchi branch out into smaller tubes known as bronchioles.

Answer 2

Answer:

1. In the lungs, the trachea divides into bronchi.

2. Bronchi then divide into smaller tubes known as bronchioles.

3. The bronchioles end into millions of tiny air sacs called alveoli.

4. In the alveoli diffusion of gases between alveoli and capillaries takes place.

5. The concentration of oxygen present in the alveolar air is more than in the blood capillaries.

6. In this condition, the oxygen moves from diffuses from alveoli into the capillaries.

7. Since there is more carbon dioxide in the capillaries than in the alveolar air, carbon dioxide diffuses from the blood capillaries to the alveolar air in the alveoli. It is expelled out of the body.