MCQ IN MEDICINE

Detailed explanation-1: -Chronic obstructive pulmonary disease (COPD) is a common lung disease causing restricted airflow and breathing problems. It is sometimes called emphysema or chronic bronchitis. In people with COPD, the lungs can get damaged or clogged with phlegm.

Detailed explanation-2: -With COPD, less air flows through the airways-the tubes that carry air in and out of your lungs-because of one or more of the following: The airways and tiny air sacs in the lungs lose their ability to stretch and shrink back. The walls between many of the air sacs are destroyed.