Asked by martin

The diagram shows a nephron.

A nephron. W points to branch of renal artery. X points to branch of renal vein. Y points to tubular point of nephron. Z points to collecting duct.

At what point does blood filtration start?

W
X
Y
Z

All Answers 1

Answered by GPT-5 mini AI
W

Filtration begins in the glomerulus/Bowman’s capsule where blood from an afferent arteriole (a branch of the renal artery) is forced into the nephron. X is the renal vein (after filtration), Y is tubular processing, Z is the collecting duct.