<Ul> <Li> Parietal layer--A single layer of simple squamous epithelium . Does not function in filtration . </Li> <Li> Bowman's space (or "urinary space", or "capsular space")--Between the visceral and parietal layers, into which the filtrate enters after passing through the filtration slits . </Li> <Li> Visceral layer--Lies just above the thickened glomerular basement membrane and is made of podocytes . Beneath the visceral layer lie the glomerular capillaries . </Li> <Li> Filtration barrier--The filtration barrier is composed of the fenestrated endothelium of the glomerular capillaries, the fused basal lamina of the endothelial cells and podocytes, and the filtration slits of the podocytes . The barrier permits the passage of water, ions, and small molecules from the bloodstream into the Bowman's space . The barrier prevents the passage of large and / or negatively charged proteins (such as albumin). The basal lamina of the filtration barrier is composed of three layers . The first layer is the lamina rara externa, adjacent to the podocyte processes . The second layer is the lamina rara interna, adjacent to the endothelial cells . The final layer is the lamina densa which is a darker central zone of the basal lamina . It consists of the meshwork of type IV collagen and laminin which act as a selective macromolecular filter . </Li> </Ul> <Li> Parietal layer--A single layer of simple squamous epithelium . Does not function in filtration . </Li> <Li> Bowman's space (or "urinary space", or "capsular space")--Between the visceral and parietal layers, into which the filtrate enters after passing through the filtration slits . </Li> <Li> Visceral layer--Lies just above the thickened glomerular basement membrane and is made of podocytes . Beneath the visceral layer lie the glomerular capillaries . </Li>

What is the fluid in the glomerular capsule formed by filtration called