Question

how are alveoli designed to maximize the exchange of gases brainliest​

Answer 1

Answer:

alveoli are the small balloon like structures present in the lungs. the walls of the alveoli consists of network of blood vessels. each lungs contains 300 to 350 million alveoli's and making it a total of approximately 700 million in the both the lungs the surface when spread out covers about 80 metre square area this large surface area makes the gases exchange more efficient

Answer 2

Within the lungs , the air passage

divides into smaller and smaller tubes

called bronchi which in turn form

bronchioles . The bronchioles terminate

in balloon-like structures called alveoli .

The alveoli present in the lungs provide

maximum surface for exchange of gases .

The alveoli have vary thin walls and

contain an extensive network of blood

vessels to facilitate exchange of gases .