Constriction of which vessel, by intrinsic or extrinsic mechanisms, decreases glomerular filtration rate?
A) vasa recta
B) peritubular capillary
C) efferent arteriole
D) glomerulus
E) afferent arteriole

Question

Quizplus · Accepted Answer

Constriction of the afferent arteriole decreases the blood flow into the glomerulus, thereby reducing the glomerular filtration rate (GFR). This is because the GFR is directly related to the blood flow into the glomerulus, and any decrease in this flow will result in a lower filtration rate.

Constriction of Which Vessel, by Intrinsic or Extrinsic Mechanisms, Decreases