asthma- U get thicker muscle walls, mucus in lumen, bronchoconstriction which causes folded walls

COPD- chronic bronchitis affecting bronchi, mucus hyper secretion due to increased goblet cells and hyperplasia of them so they’re bigger- cilia can’t move as well and there’s less of them- causes mucus build up

COPD people/smokers get fibrosis in airway which narrows airway lumen- causes small airway obstruction (bronchioles) leading to wheezy patients

different people have differing severities of the 3 above features of COPD

In COPD, alveolar attachments also degrade, making alveoli collapse more leading to more airway obstruction

To check if someone has been smoking, we can check for metabolites in the pee

• Asthma Vs COPD overall
• COPD pathophysiology
• COPD emphysema
• Normal vs COPD airway image
• Chronic bronchitis (small airways disease) images of airway size and mucus hypersecretion
• COPD FEV1 decline graph
• Treatment for COPD