Question

how are alveoli designed to maximize the exchange of gases??

Answer 1

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The alveoli are thin walled and richly supplied with a network of blood vessels to facilitate exchange of gasesbetween blood and the air filled inalveoli. They have balloon – like structure that provide maximum surface area for exchange of gases.

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Answer 2

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➡️The alveoli are the small balloon like structure present in the lungs. The walls of the alveoli consist of extensive network of blood vessels. Each lungs contains 300 -350 millions alveoli making it a total of approximately seven hundred millions in both the lungs . The alveolar surface when spread out covers about 80 m sq ar. This large surface area makes the gaseous exchange more effective..


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