In the physiology of the kidney,<unk>  <unk>  is the volume of<unk>  delivered to the kidneys per unit time. In humans, the kidneys together receive roughly 20% of cardiac output, amounting to 1 L/min in a 70-kg adult male.<unk>  is closely related to renal plasma flow (RPF), which is the volume of<unk>  plasma delivered to the kidneys per unit time.
While the terms generally apply to arterial<unk>  delivered to the kidneys, both<unk>  and RPF can be used to quantify the volume of venous<unk>  exiting the kidneys per unit time. In this context, the terms are commonly given subscripts to refer to arterial or venous<unk>  or plasma flow, as in<unk> a,<unk> v, RPFa, and RPFv. Physiologically, however, the differences in these values are negligible so that arterial flow and venous flow are often assumed equal.
Renal blood flow
Glomerular filtration rate
Effective renal plasma flow
Renal protein reabsorption
Renal physiology
Coronary circulation
Renal glucose reabsorption
Cerebral circulation