Correct option is A
Explanation:
● Emphysema is a chronic lung disease in which the inner walls of the alveoli get damaged.
● Damaged alveoli lose elasticity and eventually burst, forming larger air spaces.
● This reduces the surface area for gas exchange, causing breathlessness.
Information Booster:
● Emphysema is a type of COPD (Chronic Obstructive Pulmonary Disease).
● Main cause: long-term smoking.
● Symptoms include chronic cough and difficulty in breathing.
● Alveolar damage is irreversible.
● Oxygen therapy is commonly used in severe cases.
Indigestion causing upper abdominal discomfort, bloating, nausea, and burning sensation.
Heart rhythm disorders where the heartbeat becomes too fast, too slow, or irregular.
Genetic disorder causing thick, sticky mucus buildup in lungs and digestive system, leading to chronic lung infections.