The alveoli pass it from your blood back into your lungs before you exhale it ... Smoking damages the tiny hairs that line the gas exchange system; these hairs are called ciliated cells.

Smoking damages the airways, air sacs (alveoli) in the lungs, and cilia, which are tiny hair-like structures that prevent dirt and mucus from entering your lungs. Withdrawal from tobacco products ...

Inside, the lungs look like sponges and are made up of a mass of fine tubes. The smallest of these tubes are air sacs called alveoli, the walls of which are covered in tiny blood vessels. The role of ...

Lymph nodes and the diaphragm are also shown. Oxygen is inhaled into the lungs and passes through the thin membranes of the alveoli and into the bloodstream (see inset). Our lung cancer specialists ...

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 ...

It has been extremely difficult to determine what proportion of the fluid recovered by lavage represents alveolar fluid from the distal airways and alveoli, so-called epithelial lining fluid (ELF).