<prompt> All the following are true regarding blood supply to the kidney, except -Stellate veins drain superficial zoneIt is a type of portal-circulationThe renal artery divides into five segmental arteries before entering the hilumIts segmental arteries are end-arteries  <response>: Kidney has five independent vascular segmentsSegmental arteries divide into lobar branches.Area of kidney supplied by lobar artery renal includes 1-2 pyramids and the adjacent part of the cortex.Branches of renal arteries are end arteries.Renal blood passes through 2 sets of capillary plexus.High-pressure bed 60 mmHg of glomerular plexus for filtration.Low-pressure bed 13mmHg of peritubular plexus for selective reabsorption and nutrition.These are connected by efferent glomerular arterioles which act as a renal portal system. 