Why are a very large number of alveoli presen | vedclass

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(B) The alveoli are the primary sites of gas exchange in the lungs. They are numerous and spherical in shape,which significantly increases the total s

Vedclass · Accepted Answer

To provide a large surface area for diffusion

Vedclass · Answer

(B) The alveoli are the primary sites of gas exchange in the lungs. They are numerous and spherical in shape,which significantly increases the total surface area available for the diffusion of gases ($O_2$ and $CO_2$). According to Fick's law of diffusion,the rate of gas exchange is directly proportional to the surface area of the membrane. Therefore,a large number of alveoli ensure efficient and rapid exchange of gases between the blood and the atmosphere.

Why are a very large number of alveoli present in the lungs?

Similar Questions

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