What forms glomerular filteration membrane?

The glomerular filtration membrane is formed by three key layers: the fenestrated endothelium of glomerular capillaries, the basement membrane, and the podocytes of the visceral layer of the Bowman's capsule. The fenestrated endothelium allows for the passage of water and small solutes while preventing the filtration of larger molecules. The basement membrane acts as a filtration barrier, further restricting the passage of proteins and cells. Finally, the podocytes have foot-like processes that create filtration slits, enhancing the selectivity of the membrane.