Question

how are alveloi designed​

Answer 1

Hope this helps u mate

Alveoli provide a surface for the exchange of gases. An extensive network of blood vessels is present in the wall of the alveoli. ... Air is sucked into the lungs and alveoli. The oxygen from the breath, diffuses into the blood and CO2 from the blood brought from the body, diffuses out into the air.

Answer 2

•Alveoli are small balloon like structures present in lungs.

•Alveoli are designed in a manner that they provide a large surface area for exchange of gases.

•It is estimated that if all Alveoli in human body are spread out on a plane field, they would cover an area of about 75 m .sq.