Question

How are the lungs designed in human beings to maximize the area for exchange of gases?

Answer 1

Maximization of area of exchange of gases:

1. The lungs are an important component of the respiratory system. .
2. Lungs are soft, spongy, elastic organs surrounded by a thin membrane sac known as the pleura.
3. The lungs are divided into bronchi, and the bronchi are divided into bronchioles.
4. The alveoli are small, round, or balloon-like structures at the ends of the bronchioles that increase surface area and maximize gas exchange in the lungs.
5. The alveoli are sac with a diameter of about 0.2-0.5 mm.
6. These alveoli are located in the lungs at the end of the airways.
7. Alveolar structure can be associated with the appearance of raspberries or "grape".
8. The average adult lung has about 480 million alveoli.