Question

The diagram shows a nephron.
Where is the blood first filtered?

W
X
Y
Z

Answer 1

I think W is the answer

Answer 2

W $\rightarrow$ Renal artery

X $\rightarrow$ Renal vein

Y $\rightarrow$ Tubule

Z $\rightarrow$ Collecting Duct



◆ In Kidney's Nephron - blood is sent to the body’s filter treatment plant, where it is purified by the kidneys and circulated on to the rest of the body. Some of the blood flow becomes fluid waste (1/1000th to 2/1000th) and is sent into the bladder for storage until it can be conveniently expelled. This toxic waste is called urine.