renal portal system


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re·nal por·tal sys·tem

an arterial portal system, in which efferent glomerular arterioles receive blood from the capillaries of the renal glomeruli and carry it to the peritubular capillary plexus surrounding the proximal and distal convoluted tubules.
Renal portal systemclick for a larger image
Fig. 268 Renal portal system . The venous blood supply to the kidneys in (a) fish (renal portal system present), (b) mammals (renal portal system absent).

renal portal system

the system of veins in fish and amphibians taking blood from the region of the tail or hind limbs directly to the kidneys.