emphysema is characterized by
abnormal permanent enlargement of air spaces distal to terminal bronchiole due to:-destruction of elastic tissue support-all or parts of respiratory unit (respiratory bronchiole, alveolar ducts, and alveoli) may be involved
Emphysema is a chronic lung disease that is characterized by the permanent destruction of the small air sacs in the lungs, known as alveoli. This damage results in decreased lung function, making it difficult for the person to breathe properly.
The primary symptom of emphysema is shortness of breath, which gradually worsens over time. Other common symptoms include coughing, wheezing, chest tightness, and fatigue. People with emphysema may also experience a diminished ability to perform daily activities, such as walking or climbing stairs, due to their shortness of breath.
The primary cause of emphysema is smoking, as it is responsible for damaging the delicate lung tissue over time. Environmental factors, such as air pollution and second-hand smoke, as well as genetic factors, can also contribute to the development of emphysema.
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