Aveolies are little air sacks in the lungs which streach out to the size of a tennis court. This is also where the gas exchange happens- Carbon dioxide out and oxygen in.
The aveolies remove waist out.
Alveoli are tiny, balloon-like structures in the lungs where gas exchange occurs. They consist of a single layer of epithelial cells (type I alveolar cells) surrounded by a network of capillaries. The walls of the alveoli are extremely thin, allowing oxygen to diffuse into the blood and carbon dioxide to be expelled. Additionally, type II alveolar cells produce surfactant, which reduces surface tension and helps keep the alveoli from collapsing.
The alveoli are located in the lungs. They are used to move carbon dioxide and oxygen between the lungs and the bloodstream.