alveoli

alveoli   Dan alveoli

Alveoli have moist walls that are only one cell thick which makes the exchange surface very thin and the process of diffusion much quicker

Alveoli are thin-walled, sac-like structures lined by a single layer of flattened squamous epithelial cells: type I pneumocytes This extremely thin nature of Emphysema is a lung disease that damages the alveoli in your lungs The primary symptom of emphysema is shortness of breath Chronic bronchitis is a lung

patch Segmented 3D images of alveoli in ducts and sacs in inspiration and in expiration Scale bar, 50 μm The ratio of the alveolar depth Alveoli and alveolar sacs form structures similar in appearance to a cluster of grapes, where each small grape is an alveolus within an alveolar sac