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 ...

Bacterial pneumonia can be a life-threatening disease that causes lung injury. A new study shows that accumulation of a phospholipid in the lung fluid in mice and humans worsens gas exchange during ...

When we breathe, air moves through the small passage-like bronchioles of our lungs until it reaches the alveoli. These tiny sac-like structures contain a micron-thick hydrophobic epithelial membrane ...