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Figure 26.8 The Filtration Membrane Process Diagrams Step-by-Step Copyright © 2007 by John Wiley & Sons, Inc. Podocyte of visceral layer of glomerular (Bowman’s) capsule Filtration slit Pedicel 1 Fenestration (pore) of glomerular endothelial cell: prevents filtration of blood cells but allows all components of blood plasma to pass through (a) Details of filtration membrane Pedicel of podocyte Filtration slit Basal lamina Lumen of glomerulus Fenestration (pore) of glomerular endothelial cell (b) Filtration membrane TEM 78,000x Podocyte of visceral layer of glomerular (Bowman’s) capsule Filtration slit Pedicel 1 Fenestration (pore) of glomerular endothelial cell: prevents filtration of blood cells but allows all components of blood plasma to pass through 2 Basal lamina of glomerulus: prevents filtration of larger proteins (a) Details of filtration membrane Pedicel of podocyte Filtration slit Basal lamina Lumen of glomerulus Fenestration (pore) of glomerular endothelial cell (b) Filtration membrane TEM 78,000x Podocyte of visceral layer of glomerular (Bowman’s) capsule Filtration slit Pedicel 1 Fenestration (pore) of glomerular endothelial cell: prevents filtration of blood cells but allows all components of blood plasma to pass through 2 Basal lamina of glomerulus: prevents filtration of larger proteins 3 Slit membrane between pedicels: prevents filtration of medium-sized proteins (a) Details of filtration membrane Pedicel of podocyte Filtration slit Basal lamina Lumen of glomerulus Fenestration (pore) of glomerular endothelial cell (b) Filtration membrane TEM 78,000x