正常人左肺一般被斜裂分为上、下两叶.我们在解剖一成年男尸时,发现左肺被一斜裂和上、下两条水平裂分四叶.左肺斜裂正常,上水平裂起自斜裂后部,向前内抵至沛前缘.下水平裂自斜裂的前下部抵至肺前缘.斜裂与上、下两条水平裂均深达肺门.由肺门作支气管探查,见左主支气管共 Normal left lung is generally oblique split into upper and lower leaves.We anatomize an adult male corpse, we found that the left lung was a split and split the upper and lower two levels split four leaves. Left lung oblique normal, The upper horizontal fissure from the back of the ramp, forward to the Pei front edge arrived at the next horizontal fissure from the front of the lower edge of the collision arrived in the lungs front edge of the oblique fissure and the upper and lower two horizontal cleft are deep hilar. From the hilar bronchial exploration, see the left main bronchus