Year 1- Respiratory > Common lung pathologies affecting diffusion > Flashcards
What happens in emphysema?
Destruction of the alveoli so reduces surface area for gas exchange.
In individuals with emphysema, what are the PO2 levels like in the pulmonary vein?
Low
What happens in fibrosis/fibrotic lung disease?
Thickened alveolar membrane slows down gas exchange so loss of lung compliance may decreases alveolar ventilation.