The filtration of the plasma per unit of time is known as the glomerular filtration rate (GFR). GFR is directly related to the:
A) perfusion pressure in the glomerular capillaries.
B) oncotic pressure in the glomerular capillaries.
C) vascular resistance in the glomerular arterioles.
D) hydrostatic pressure in the Bowman capsule.

Question

Quizplus · Accepted Answer

GFR is directly related to the perfusion pressure in the glomerular capillaries. The higher the perfusion pressure, the greater the filtration of plasma per unit of time. The other options (oncotic pressure, vascular resistance, and hydrostatic pressure in the Bowman capsule) may also affect GFR, but the most direct and significant factor is perfusion pressure.

The Filtration of the Plasma Per Unit of Time Is