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1.解剖50个成人的右肺下叶,详细观察了右肺下叶支气管的分支情况。 2.观察了上段支气管(B~6)的发起、分支型及分布区域。B~6为一支型者98％,二支型者2％。一支型的B~6分为二支者有86％,其中以分为B_(a+b)~6和B_c~6者最多(68％);分为三支者有12％。B~6分布区的下界呈水平位者76％,为斜位者22％。亚上段支气管(B~*)的出现率为38％,其中有6％B~*有二支。BX_(10)~*的出现率为86％,可有1—3支。B~*与BX_(10)~*都布于后缘区及其相邻的区域。 3.肺底内侧段支气管(B~7)可分为四型,Ⅰ型为38％,Ⅱ型为30％,Ⅲ型为16％,Ⅳ型为16％。肺底前段支气管(B~8)为较稳定的一支,普通型为78％,扩大型为20％,缩小型为2％。肺底外侧段支气管(B~9)的普通型为82％,扩大型为2％,缩小型为16％。缩小型中以B~9的一个分支起于原位、另一支变位起于B~(10)干者最多(12％)。肺底后段支气管(B~(10)),50例中只有2例属于扩大型,全部标本的B~(10)皆有B_a~(10)及B_b~(10)支。 4.各段支气管的长度以及它们之间的距离都进行了测量。
1. Dissecting the lower right lobe of 50 adults and observing in detail the branching of the bronchus in the lower lobe of the right lung. Observed the upper bronchus (B ~ 6) the initiation, branching and distribution area. B ~ 6 is a type of 98%, two branch type 2%. A type B ~ 6 is divided into two branches of 86%, which is divided into B_ (a + b) ~ 6 and B_c ~ 6 up to (68%); divided into three branches of 12%. The lower bound of B ~ 6 distribution area was 76% of the horizontal position and 22% of the inclined position. The incidence of upper bronchus (B ~ *) was 38%, of which 6% B ~ * had two. The incidence of BX_ (10) ~ * is 86%, there may be 1-3. B ~ * and BX_ (10) ~ * are located in the trailing edge area and its adjacent area. 3. The medial segment of bronchus (B ~ 7) can be divided into four types, type I is 38%, type II is 30%, type III is 16%, type IV is 16%. Bronchial anterior segment of the lung (B ~ 8) for the more stable one, 78% for the common type, enlargement of 20%, reduced to 2%. The common type of lateral bronchus (B ~ 9) was 82%, enlargement type was 2% and shrinking type was 16%. In the reduced type, a branch from B to 9 originated in situ, and the other branch shifted up from the B to (10) by up to 12%. In the posterior segment of the bronchus (B ~ (10)), only 2 of 50 cases belonged to enlarged type. B ~ (10) and B_b ~ (10) were found in all the specimens. 4. The length of each bronchus and the distance between them were measured.