红腹锦鸡和小白鼠肾小球微血管铸型的扫描电镜观察

为了探讨鸟类肾小球微血管构筑与哺乳动物肾小球微血管构筑的异同，用微血管铸型技术和扫描电镜对红腹锦鸡和小白鼠的肾小球微血管做了铸型观察。结果表明：小白鼠肾小球由小球内小叶微动脉，毛细血管网小叶及小叶间交通支和小叶输出血管构成，小叶可分出亚单位；红腹锦鸡肾小球为一簇迂回盘曲的血管团，血管间未见有复杂的分支和吻合；小白鼠和红腹锦鸡入球小动脉和出球小动脉均为一支，但有的出球小动脉有分支。另外，文章还对肾小球微血管构筑与滤过率的关系进行了讨论。

SEM Observations on the Microvasculature of the Renal Glomerulus of Chrysolophus pictus and the Mouse

In order to investigate similarities and difference in the microvascular architecture of the renal glomerulus of birds and mammals, we observed the microvasculature of the renal glomerulus of Chrysolophus pictus and the mouse using microvascular casting method and scanning electron microscope.The results show that:the glomerulus of the mouse consists of a lobular arteriole within the glomerulus,capillary meshwork lobules and communication branches between the lobules and the efferent arteriolar roots;there are some sublobular microcirulatary units in lobules;the glomerulus of Chrysolophus pictus is only a tortuous vascular ball;there are no branches anastomosed between the vascular;the afferent arteriole is a branch, efferent arteriole is one either,but some efferent arteriole has branches.In addition,the relationship between the microvasculature of the renal glomerulus and filtration rate are discussed.