气管及左右支气管的测量

THE MEASUREMENT OF THE TRACHEA AND THE BRONCHI IN THE ADULT CHINESE

在140具成人尸体上,分别观察了气管的起迄高度,测量了气管与支气管的长度与管(内)径以及气管支气管的夹角等。气管的起迄高度(78例),上端以平C_(6)中1/3—C_(7),上1/3之间者较多(69.23±5.23%),下端以平T_(4)下1/3—T_(5)中1/3之间者较多(67.95±5.28%)。141例气管的平均长度是110.77±9.94毫米,以在101—125毫米之间者较多.占83.0±3.16%。140例气管中部的左右内径的平均值为16.17±2.61毫米,前后内径的平均值为14.73±2.68毫米,故左右内径比前后内径大。120例气管支气管夹角的平均值是68.09°±11.82°,以在66°—80°之间者较多(55.9±4.53%);男性的夹角度数平均比女性的小5°左右。114例左支气管的平均长度是51.89±4.18毫米;136例左支气管中部左右内径的平均值为11.06±2.10毫米,前后内径的平均值为9.08±1.80毫米。91例右支气管的平均长度为26.18±4.05毫米;109例右支气管中部左右内径的平均值为14.85±2.61毫米,前后内径的平均值为11.20±2.23毫米。由此可见,左支气管的长度约为右支气管的一倍,左支气管中部的内径比右支气管的为小,两者的比例约为4:5。

The lengths and diameters of the trachea and bronchi,the angle formed at the bi-furcation of the trachea were measured in 141 Chinese adult cadavers.The length of the trachea measured in 141 specimens was 71--134 mm with 110.77±9.94 mm as an average.The internal transverse diameter of the trachea was 9.5--22.0 mm,having an average of 16.17±2.61 mm.The internal sagittal diameter varied from 8 to 22.5 mm,with 14.73±2.68 mm as the average.The transverse dia-meter is greater than sagittal.The angle formed at the bifurcation of the trachea varied from 35°--92°,averaged 68.09°±11.82°.The angle is greater in female than in the male for about 5°.The left bronchus had a length of 42--63 mm(average,51.89±4.18 mm),doubled that of the right one(15--36 mm average,26.18±4.05 mm).