asbestos arlous diseases of Alveoli fill with thick fluid making gas exchange difficult. r respirator system up in lungs, reducing theirs Fibrous connective tissue bu elasticity. Common sympToms Cou sputum Tubercles encapsulate bacteria, and wheezin mucus Alveoli burst and fuse into e inflamed du enlarged air spaces, Surface area acute)or due to an for gas exchange is reduced Asthma irritant(chronic). Coughing brings Airways are inflamed due to up mucus and pus imitation, and bronchioles constrictVarious diseases of respiratory system Common symptoms: cough sputum wheezing