Question
Biology Question on Human Excretory System
The peritubular capillaries of the nephron arise from the
A
afferent arteriole
B
efferent arteriole
C
renal artery
D
arcuate artery.
Answer
efferent arteriole
Explanation
Solution
The efferent arteriole connects to a second network of capillaries, the peritubular capillaries, which are closely associated with the nephron tubule. It is into these peritubular capillaries that water, ions and nutrients are reabsorbed from the filtrate in the nephron tubule.