Fig. 5

The ultrastructure of Type II alveolar epithelial cells in all groups (×10000). Control: control group; Model: model group; AS: acupoint sticking group; BY: Bufei Yishen group; BY + AS: Bufei Yishen + Acupoint sticking group; APL: aminophyline group. M: mitochondrion; N: nucleus; LB: lamellar bodies. Bar = 2 μm in (a, b, c, d and e represented volume density (Vv), specific surface area (δ) and ratio of membrane area (δm) of mitochondria and Vv of lamellar body in Type II alveolar epithelial cells respectively. Values are the mean ± SE. aaP < 0.01 vs Model group; bbP < 0.01 vs BY group; ccP < 0.01, cP < 0.05 vs AS group; ddP < 0.01 vs BY + AS group