The respiratory distress that accompanies emphysema is caused by: repeated exposure to cigarette smoke
A condition that affects the alveoli (small air sacs) of the lungs. The transfer of oxygen and carbon dioxide in the lungs occurs in the walls of the alveoli. In emphysema, the alveoli swell abnormally, the walls are damaged, and breathing becomes difficult.
The main cause of emphysema is long-term exposure to air irritants, including cigarette smoke. Marijuana smoke. Air pollution
Symptoms of emphysema are :
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