What is the name of the tiny air-sacs at the | vedclass

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(A) $1$. The respiratory system consists of a network of tubes that transport air to the lungs.$2$. The trachea branches into bronchi, which further d

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Alveoli

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(A) $1$. The respiratory system consists of a network of tubes that transport air to the lungs.$2$. The trachea branches into bronchi, which further divide into smaller bronchioles.$3$. At the terminal end of the smallest bronchioles, there are balloon-like structures called $Alveoli$.$4$. $Alveoli$ provide a large surface area for the exchange of gases ($O_2$ and $CO_2$) between the blood and the air.

What is the name of the tiny air-sacs at the end of the smallest bronchioles in the lungs?

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