摘要
目的:观察女性输尿管盆段,弄清输尿管隧道和输尿管鞘的形态结构。方法:取正常成年女性盆部防腐标本15具,从盆腔前壁显露双侧输尿管盆段,详细解剖、观察输尿管隧道及输尿管鞘的形态结构,对输尿管盆段作三维形态学研究。结果:(1)输尿管行经盆腔的结缔组织间隙中,形成输尿管隧道,该隧道在冠、矢状面均成“∽”形弯曲,分为3段,其长度分别为:壁内段(4.5±1.0)cm、子宫主韧带内段(1.8±0.4)cm、膀胱后间隙内段(2.5±0.5)cm;(2)左右输尿管盆段在行经输尿管隧道时均有来自盆腔内的结缔组织包裹形成输尿管鞘。结论:输尿管隧道为骨盆入口下约3.5cm处至膀胱底之间弯曲的结缔组织间隙隧道;输尿管盆段有完整的输尿管鞘包裹;掌握输尿管隧道的形态和保护好输尿管鞘是手术中避免损伤输尿管的关键。
Objective: To observe the pelvic course of female ureter and fi nd out the characteristics of ureter tunnel and ureter sheath. Methods: 15 norma l adult female cadavers were used to expose the pelvic course of both sides of t he ureter from the anterior wall of pelvis, and then the structures of the urete r tunnel and the ureter sheath were analyzed, while the three-dimensional morpho logical characters of the pelvic course of the ureter were explored. Results :(1 ) The ureter passed through the interval of the connective tissue of pelvic wall and formed the ureter tunnel, which bent into the shape of '∽' in coronal and sagittal plane section, and divided into three sections : the course piercing b ladder wall(4.5±1.0) cm, the course locating in cardinal ligament of uterus(1. 8±0.4) cm and the course occupying the interval behind bladder(2.5±0.5) cm. (2 ) When passing the ureter tunnel, left and right pelvic courses of the ureter we re bundled by connective tissue from pelvic wall and formed the ureter sheath. C onclusions: The ureter tunnel is a bend interval tunnel of connective issue from the bottom of the entrance of the ureter tunnel about 3.5 cm to the bladder bot tom, and the pelvic course of ureter is wholly packed by the ureter sheath. Unde rstanding the ureter tunnel and protecting the ureter sheath are the key points to avoid damaging the ureter during operations.
出处
《中国临床解剖学杂志》
CSCD
北大核心
2004年第3期271-273,共3页
Chinese Journal of Clinical Anatomy
