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 ...

Breathing intakes oxygen and expels carbon dioxide, and this gas exchange takes place in the alveoli in the lungs. Alveoli contain type 1 alveolar epithelial cells (AT1), which are involved in the ...

Using animal models, University of Alberta researchers have taken what they say is the first important step towards treatment for lung disease in premature babies, in effect, growing new blood vessels ...

Researchers have identified a lung stem cell that repairs the organ's gas exchange compartment. They isolated and characterized these progenitor cells from mouse and human lungs and demonstrated they ...

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 ...

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.

Breathing intakes oxygen and expels carbon dioxide, and this gas exchange takes place in the alveoli in the lungs. Alveoli contain type 1 alveolar epithelial cells (AT1), which are involved in the ...