空肠和回肠微血管分布特点及其临床意义  

The distribution and clinic significance of microvessels of jejunum and ileum

作　　者：王守安[1] 钟震亚[2] 赵振富[2] 张胜昌[3] 田国忠[2] 

机构地区：[1]莆田学院医学院基础医学部解剖教研室,福建莆田351100 [2]佳木斯大学基础医学院,黑龙江佳木斯154007 [3]右江民族医学院,广西右江533000

出　　处：《中国临床解剖学杂志》2008年第6期612-615,共4页Chinese Journal of Clinical Anatomy

基　　金：黑龙江省教育厅资助项目(10541215)

摘　　要：目的:为小肠疾病的病机和手术治疗以及小肠移植提供微血管构筑的解剖基础。方法:对30例正常成人尸体小肠标本动脉红色乳胶灌注并解剖剥离,体视显微镜下观察入壁动脉形态并测量其管径;6例新鲜成人游离空回肠标本墨汁灌注,组织揭层透明铺片及组织切片,光镜下观察粘膜下层微动脉配布规律并测量毛细血管密度。结果:①空肠和回肠前后长入壁动脉入肌点位置和管径均不同;②入壁动脉终支-粘膜下动脉形成三级动脉网,并分别向肌层和粘膜层发出返支和分支,构成粘膜层和肌层动脉网。结论:入壁动脉是肠壁动脉主干,粘膜下动脉则是肠壁的血供枢纽。Objective： To explore microvascular angioarchitecture of small intestine, and provide anatomic basis for treating diseases of intestine. Methods： 30 normal adult cadavers were selected and perfused red latan into arteries. Under stereomicroscope, jejunoileac entering arteries were observed and measured carefully. Meanwhile, ink injection was performed in jejunoileum from 6 fresh adult cadavers, microvascular angioarchitecture in submucous layer and the capillary density were observed and analyzed under light microscope after preparing tissue sections. Results： （1）Both the entering points and the diameters of the anterior and posterior long entering arteries are different between jejunum and ileum; （2）The submucosal arterioles and the tele-branches of entering arteries, formed three grades of arterial rete and gave off recurrent branches to the muscular layer and the branches to the mucosa to form the arterial retes of muscular layer and mucosa. Conclusions： The jejunoileac entering arteries are the main trunk of the arterial supply for small intestine, while the submucosal arterioles are the key arteries of the blood supply of intestines.

关 键 词：成人 空肠 回肠 微血管 

分 类 号：R322.12[医药卫生—人体解剖和组织胚胎学]