山羊肾微血管构筑的扫描电镜观察

目的观察山羊肾微血管构筑。方法经山羊肾动脉灌注丙烯腈-丁二烯-苯乙烯丁酮溶液,制成肾脏微血管铸型标本,在双目显微镜下进行解剖,镀膜后用扫描电子显微镜观察。结果山羊肾小球为一簇迂回盘曲的血管团,由小叶输入微动脉、毛细血管网小叶及小球内交通支和小叶输出微动脉构成;绝大部分肾小球的入球小动脉和出球小动脉均为1支,少数出球小动脉为2支。其出球小动脉的直径约为入球小动脉的一半,大多数自肾小球门处穿出,个别可从肾小球门的对侧离开。结论肾血管的灌注和铸型是研究肾脏血管超微结构较为理想的方法。

OBSERVATION ON MICROVASCULAR ARCHITECTURE OF GOAT KIDNEY BY SEM

ObjectiveTo observe the ultrastructure of angioarchitecture of goat kidney.MethodsThe vascular corrosion cast of goat kidney was made by intra-arterial infusion of allylcyaniae-butadiene-styrolene butanone solution,and then was dissected under binocular microscope.The architecture of microvascular vessel of kidney was observed by scanning electron microscope. ResultsThe microvascular vessels of the glomeruli show itself a bunch of twist blood vessel mass,which is composed of afferent arteriole,capillary network and efferent arteriole.The vascular anastomosis is observed between the branches.The most of the afferent and efferent vessel are one branch respectively,a few of those are two branches.Among them the diameter of the efferent arteriole is a half of the afferent one,majority of those go out from the hilum of the glomeruli of kidney,individuality depart from the opposite side of the glomeruli hilum of kidney. ConclusionThe perfusion and casting mould of vessel is a relatively ideal method to investigate the microvascular architecture of kidney.