论文部分内容阅读
目的探讨成人和胎儿回肠微血管构筑的异同,为回肠生理机能和病理改变提供解剖学依据。方法通过墨汁灌注、揭层透明、微血管铸型扫描电镜等方法,观察成人和胎儿回肠肠壁各层微血管构筑情况。结果回肠直动脉进入肠壁后分别向浆膜和肌层发出分支,其中浆膜层微血管较稀疏;肌层微动脉走行与肌纤维方向一致,相互间吻合成网;黏膜下动脉分别向肌层和黏膜层发出返支和分支,构成黏膜层和肌层动脉网;黏膜层微血管形态大体与肠绒毛的轮廓和肠腺窝结构相似。结论黏膜下动脉是回肠肠壁的血供枢纽,成人和胎儿回肠微血管形态基本一致。
Objective To explore the similarities and differences between ileum and ileum microvascular structures in adults and provide an anatomical basis for the physiological function and pathological changes of ileum. Methods The microvessel structures of all layers of adult and fetus ileum were observed by means of ink perfusion, transparent and micro-vessel mold scanning electron microscopy. Results The ileal straight artery into the intestinal wall, respectively, to the serosa and muscular layer branches, including serosa microvascular thinning; myelin arteries walking line with the direction of muscle fibers, mutual anastomosis into the network; submucosal artery to muscle and The mucosa sends back branches and branches, forming the mucosa and myocutaneous artery network; mucosal microvascular morphology is generally similar to the outline of the intestinal villi and intestinal glandular fossa. Conclusion The submucosal artery is the blood supply hub of ileal intestinal wall, and the morphology of ileum microvessels in adult and fetus is basically the same.