The formation of glomerular filtrate is a result of the glomerular filtration process. Blood enters the glomerulus via the afferent arteriole and exits through the efferent arteriole. The pressure in the glomerular capillaries forces water and solutes through the glomerular filtration barrier, which consists of three layers: the fenestrated endothelium of the capillaries, the glomerular basement membrane, and the podocytes with their slit diaphragms.
