What changes occur in respiratory tissues during chronic respiratory diseases?
Chronic respiratory diseases, such as chronic obstructive pulmonary disease (COPD) and asthma, can lead to significant changes in respiratory tissues. In COPD, the walls of the alveoli may become damaged, reducing the surface area for gas exchange. In asthma, inflammation and constriction of the bronchi and bronchioles can occur, leading to difficulty breathing. Histologically, these conditions may show increased mucus production, thickening of the epithelial lining, and changes in the structure of the airways.
