Vasoconstriction of the Afferent Arteriole Causes

Question

Vasoconstriction of the afferent arteriole causes
A) a decrease in the glomerular filtration rate.
B) an increase in the blood flow to the glomerulus.
C) an increase in the net filtration pressure.
D) an increase in the glomerular filtration rate.

Accepted Answer

Vasoconstriction of the afferent arteriole reduces the blood flow into the glomerulus, which leads to a decrease in the glomerular filtration rate (GFR) by lowering the hydrostatic pressure in the glomerular capillaries.