RESPIRATORY PATHWAYS BECOME IRRITATED AND BRONCHIOLES CONTSTRICT

RESPIRATORY PATHWAYS BECOME INFECTED, RESULTING IN COUGHING AND PRODUCTION OF MUCUS

ALVEOLI BREAK DOWN. REDUCED SURFACE AREA FOR GAS EXCHANGE WITH ALVEOLIS BLOOD CAPILLARIES

INFECTION IN LUNGS. AVEOLI COLLECTS MUCUS MATERIAL

BACTERIA INFECTS LUNGS. DECREASING GAS EXCHANGE BETWEEN AIR AND BLOOD

UNCONTROLLED GROWTH OF LUNG TISSUE