A common preventable and treatable disease. Characterized by persistent airflow limitation and is usually progressive, associated with enhanced chronic inflammatory response to noxious particles or gases.
emphysema
structural
changes -->
alevoli
destruction and
reduced elasticity
abnormal
enlargement of
airspaces
Chronic Bronchitis
symptoms:
"wet, junky
cough"
cough
sputum
production
ongoing for at least
3 months, for 2
consecutive years