Effective filtration pressure in glomerulus is caused due to

Options

A. powerful pumping action of the heart
B. secretion of adrenaline
C. afferent arteriole is slightly wider than efferent arteriole
D. vacuum develops in proximal convoluted tubule and sucks the blood

Answer

C

Explanation

The diameter of afferent arteriole is larger than the efferent arteriole. This increases the volume of blood in glomerulus and increases the filtration rate. This causes the effective filtration pressure which is the total pressure that promotes filtration.