Alveoli are tiny, air-filled sacs located at the end of bronchioles in the lungs. They are the primary site of gas exchange, where oxygen from inhaled air enters the bloodstream and carbon dioxide, a waste product, is removed from the body during exhalation. The large surface area and thin walls of alveoli allow for efficient diffusion of gases, enabling the vital process of respiration in the human body.

Définition et signification de « alveoli » en anglais

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