Describe the process of ultrafiltration and the parts of the nephron used (3)

Blood enter from the renal artery into the glomerulus through the wide afferent and leaves through the narrow efferent arteriole 1) Hydrostatic pressure: This increases the pressure within which forces the fluid into the bowman's capsule = filtrate = lacks protein and blood (large molecules) 2) basement membrane and podocytes stops large molecules from entering (size selective) = proteins and blood