Superior lobe上叶S Ⅵ = 6段(上或尖段)左叶:Middle lobe中叶S Ⅷ = 8段(前底段)S Ⅰ + S Ⅱ = 1段+ 2段(尖后段).Superior lobe上叶S Ⅶ = 7段(内侧底段)Inferior lobe下叶S Ⅷ = 8段(前底段)Oblique fissure斜裂S Ⅸ = 9段(外侧底段)Lingula小舌S Ⅹ = 10段(后底段)S Ⅰ + S Ⅱ.B Ⅴ =内侧段支(右侧)Left principal bronchus左主气管. ......