RESPIRATORY PATHWAYS BECOME IRRITATED AND RESTRICT

PATHWAYS BECOME INFECTED: COUGHING AND MUCUS RESULTS

ALVEOLI BREAK DOWN, REDUCED SURFACE AREA FOR GAS EXCHANGE

INFECTION OF LUNGS CAUSING ALVEOLI TO COLLECT MUCUS MATERIAL

SPECIFIC BACTERIA INFECTS LUNGS, LOWER GAS EXCHANGE QUALITY

UNCONTROLLED CELL GROWTH, CAUSING COUGHING AND AIR LOSS