<Tr> <Th> FMA </Th> <Td> 15625 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> A renal corpuscle is the blood - filtering component of the nephron of the kidney . It consists of a glomerulus - a tuft of capillaries composed of endothelial cells, and a glomerular capsule known as Bowman's capsule . </P> <P> The renal corpuscle is composed of two structures, the glomerulus and the Bowman's capsule . The glomerulus is a small tuft of capillaries containing two cell types . Endothelial cells, which have large fenestrae, are not covered by diaphragms . Mesangial cells are modified smooth muscle cells that lie between the capillaries . They regulate blood flow by their contractile activity and secrete extracellular matrix, prostaglandins, and cytokines . Mesangial cells also have phagocytic activity, removing proteins and other molecules trapped in the glomerular basement membrane or filtration barrier . </P>

What are the components of the renal corpuscle