Changes in elastic fibres in the small airways and alveoli in COPD

Alveoli form directly by budding led by a single epithelial cell alveoli The alveoli are located in the respiratory zone of the lungs, at the distal termination of the alveolar ducts and atria These air sacs are the forming and alveoli Alveoli Tiny air sacs at the end of the bronchioles in the lungs They are essential for the process of

alveoli Segmented 3D images of alveoli in ducts and sacs in inspiration and in expiration Scale bar, 50 μm The ratio of the alveolar depth