COPD Emphysema is one of the two major forms of Chronic Obstructive Pulmonary Disease, which comes about when the alveoli become damaged. Those are the tiny sacs in the lung that exchange oxygen into the blood and carbon dioxide out.
COPD Emphysema is one of the two major forms of Chronic Obstructive Pulmonary Disease, which comes about when the alveoli become damaged. Those are the tiny sacs in the lung that exchange oxygen into the blood and carbon dioxide out.