Question

name the structural and functional units of lungs which aid in gases exchange​

Answer 1

Answer:

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Alveoli

Lung tissue consists mainly of alveoli.These tiny air sacs are the functional units of the lungs where gas exchange takes place. The two lungs may contain as many as 700 million alveoli, providing a huge total surface area for gas exchange to take place.

Answer 2

Answer:

Alveoli

Explanation:

Alveoli

are the smallest passageway in the respiratory system and are richly supplied with a network of blood vessels. There are many alveoli and are the only cell that plays a significant role in gas exchange. The alveoli are called as the structural and functional unit of lungs.