Fig. 1
From: Lung development and regeneration: newly defined cell types and progenitor status
The anatomy and cellular composition in mammalian lung. a, b The architecture of epithelial cells within mouse and human airways. The basal cells, club cells, ciliated cells, goblet cells, tuft cells, pulmonary neuroendocrine cells and pulmonary ionocytes are observed in the proximal airways both in human and mouse. Basal cells are resident stem cells for trachea and main bronchi in mouse lung and trachea and proximal airways in human lung. b Mouse small airways don’t contain basal cells comparing to human c Cellular composition of alveoli. The alveoli include the alveolar type 1 epithelial cells (AT1 cells) and AT2 cells