The renal circulations.
The plural is used advisedly. Each of several microcirculations with specialized structural and functional properties is necessary to the physiologic functioning of the kidney. Newly elucidated aspects of renal vascular anatomy are mapped out and clearly related to the exchange processes that occur at the capillary level in each part of the nephron to produce the final ureteral urine of the required volume and composition.
D000042:Absorption; D002196:Capillaries / Q000502:physiology; D004058:Diffusion; D005919:Glomerular Filtration Rate; D006801:Humans; D007668:Kidney / Q000098:blood supply* / Q000502:physiology; D007672:Kidney Cortex / Q000098:blood supply; D007678:Kidney Glomerulus / Q000098:blood supply / Q000502:physiology / Q000648:ultrastructure; D007679:Kidney Medulla / Q000098:blood supply; D007684:Kidney Tubules / Q000098:blood supply; D008833:Microcirculation