Filteringmembrane
Filtering membrane
Cells(1)EndothelialD A thin layer of fenestrated ECfenestrum→70~100nm indiameter2)Surface→sialoglycoproteinwith negative electric charge
(1) Endothelial Cells ① A thin layer of fenestrated EC fenestrum→70~100nm in diameter ② Surface→sialoglycoprotein with negative electric charge
GLOMERULUSCapillaryUrinaryspaceloopsMesangiumMesangial cellMesangial matrixRed cellParietal epitheliumFenestrae inProximalendotheliumtubuleUrinary spaceCapillarylumenParietalepitheliumBasementmembraneVisceralepitheliumFootprocessesEndotheliumBasementmembraneRed cellBFootprocesses
(2) GB M1Composed of (thin)lamina rara internalamina densa (thick)- lamina rara externa (thin)
(2) G B M ① Composed of lamina rara interna (thin) lamina densa (thick) lamina rara externa (thin)
of GBMUltrastructure
Ultrastructure of G B M