Question

when blood from renal artery with impurities enters the afferent arteriole is all of it sent out through efferent arteriole??

Answer 1

Each nephron is made up of an afferent arteriole carrying blood into the glomerulus to get rinsed and an efferent arteriole carrying the cleansed blood out of the glomerulus.

The filtered blood is carried by the efferent arteriole to the vasa recta capillaries that feed the loop of henle cells. The cleansed blood is then carried back to central circulation