WASHINGTON, Sept. 6, 2022 – Alveoli are the basic functional units of the human respiratory system, acting as tiny air sacs that exchange gases. Air inhaled through the mouth and nose flows into the ...

Slugs move oxygen throughout their bodies, as other animals do, but they do so without lungs. How is this possible?

Lungs are remarkable organs that continuously achieve amazing feats, which they do so well that we take them for granted, except when their function is diminished. It all happens in a space inside ...

Alveoli are the basic functional units of the human respiratory system, acting as tiny air sacs that exchange gases. Air inhaled through the mouth and nose flows into the lungs through the branched ...

Specialized lung cells appear in the developing fetus much earlier than scientists previously thought. A new animal study (“Early lineage specification defines alveolar epithelial ontogeny in the ...

A new study published in the journal Immunology in February 2020 reports the discovery of a process that occurs in the body naturally, but which enhances the production of type 3 innate lymphoid cells ...

You have millions of air sacs (alveoli) in your lungs. These air sacs move oxygen into your blood. Alveolar walls contain surfactant. This is a substance made of fats, proteins, and other substances.

Smoking can cause lungs to look blackened, inflated, and inflamed, but some of the damage is reversible. Depending on the extent of the damage, it could take years for your lungs to regain a healthy, ...