CHRONIC BRONCHITIS is the inflammation and eventual scarring of the lining of the bronchial tubes, which results in the production of excess mucus, resulting in less air flow to and from the lungs.
EMPHYSEMA is a disease in which the air sacs (alveoli) in the lungs become thin and less elastic. The enlarged alveoli trap the air, making it harder for oxygen to get in your blood and carbon dioxide to get out of your body.
