A) powerful pumping action of the heart
B) secretion of adrenalin
C) afferent arteriole is slightly larger than efferent arteriole
D) vacuum develops in proximal convoluted tubule and sucks the blood
Correct Answer: C
Solution :
Glomerular capillaries are narrower than afferent renal arterioles. Therefore blood pressure in glomerular capillaries is become very high so that there is continuous process of ultrafiltration (ie, filtration under pressure).
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