Question
Differentiate between the followig
Afferent arteriole and Efferent arteriole

Answer

 
Afferent arterioleEfferent arteriole
Formed by the branching of the renal arteryFormed by the fusion of glomerular capillaries
Its diameter is twice as thick as the efferent
arteriole.
Its diameter is two times narrower than that of the
afferent arteriole.
Brings oxygenated blood into the kidneyCarries oxygenated blood away from Bowman's
capsule
It brings in blood which contains large amounts of
water and nitrogenous metabolic wastes.
It carries away blood that is relatively thicker and
free of toxic wastes.

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