It comes in several forms, one of which is emphysema, which causes progressive damage to the air sacs or alveoli of the lungs. Typical symptoms associated with underlying lung damage include ...

Medically reviewed by Sanja Jelic, MD Emphysema is a chronic lung disease that occurs when the air sacs in the lungs (called the alveoli) can no longer inflate and deflate to pump air in and out of ...

which is then tethered open by their surrounding alveoli. By performing 3-dimensional reconstructions of lungs from serial sections, he was able to reconstruct airway anatomy and to determine that ...

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.

COPD is the name for a collection of lung diseases that includes chronic bronchitis, emphysema and chronic ... the tiny air sacs in the lung known as alveoli in animal studies.