As systemic blood pressure falls,the afferent arterioles of the kidneys _____,preventing a reduction in blood flow to the glomerulus.
A) dilate
B) constrict
C) Neither of the above.The efferent arteriole is the artery that autoregulates to keep the glomerular filtration rate constant.

Question

Quizplus · Accepted Answer

When systemic blood pressure falls, the afferent arterioles of the kidneys dilate to increase blood flow to the glomerulus, thereby maintaining the glomerular filtration rate. This process is known as renal autoregulation.

As Systemic Blood Pressure Falls,the Afferent Arterioles of the Kidneys