Why are a very large number of alveoli presen | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(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

The solubility of $CO_2$ is about $.......$ times higher than that of oxygen across the respiratory membrane.

Under normal physiological conditions,$100 \, mL$ of oxygenated blood delivers how much $CO_2$ to the alveoli?

In humans,exchange of gases occurs

What is the primary mechanism responsible for the exchange of gases in the lungs?

What is the percentage of oxygen in expired air (in $\%$)?

Vedclass Test Series

Exam Paper Generator

Online Exam Module