Quantitative analysis of sac and duct alveoli in 3-D geometry

alveoli The terminal bronchioles then subdivide into respiratory bronchioles which subdivide into alveolar ducts Numerous alveoli and alveolar sacs

Alveoli are first located in the respiratory bronchioles that mark the beginning of the respiratory zone They are located sparsely in these bronchioles, line alveoli Alveoli The alveoli are the final branchings of the respiratory tree and act as the primary gas exchange units of the lung The gas-blood barrier between the