First slide

Human Excretory System

Question

Select the incorrect statement

Moderate

A

Efferent arteriole has wider lumen than that of afferent arteriole.
B

Efferent arteriole arises from the glomerulus.
C

Efferent arteriole divides to form peritubular capillary network around PCT and DCT.
D

Renal artery enters the kidney and divides into afferent arterioles.

Solution

The afferent arteriole is wider compared to efferent arteriole. This structural difference helps in exerting pressure required for glomerular filtration.

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