What these tiny sacs in the lungs do and conditions that can affect them Medically reviewed by Susan Russell, MD Alveoli are tiny, balloon-shaped air sacs located at the end of the bronchioles, the ...

Your lungs may be aging faster than you realize. Learn the hidden signs of declining lung function and how to protect your ...

When air goes down into the lungs, it passes through smaller and smaller tubes and ends up in tiny air sacs called alveoli. Oxygen passes through the walls of the alveoli and enters tiny blood ...

oxygen diffuses into it and carbon dioxide diffuses out of it Some water vapour is also lost from the surface of the alveoli into the lungs - we can see this condensing when we breathe out on cold ...

Researchers have uncovered changes in the cellular response throughout lung damage caused by SARS-CoV-2—the virus behind ...

Discover essential steps to protect and strengthen your lungs, from quitting smoking to breathing exercises that can ...

Alveolar macrophages — white blood cells that are part of the immune system and found in the alveoli or ‘air sacs’ of the lungs — remove dust and microorganisms from the airways.

Tumors that form in a person’s lungs may block or compress their airways, causing atelectasis. A form of lung cancer — adenocarcinoma — develops in the alveoli. This cancer causes ...

Now, in a recent Science Immunology study, Marichal and his colleagues confirmed that these unusual cells that emerged following an IAV infection are macrophages, and that they facilitate the repair ...