VASCULAR
THE NEPHRON
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Thicker diameter of afferent to efferent arteriole
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Thicker diameter of efferent to afferent arteriole
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The presence of podocytes
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All of these
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Detailed explanation-1: -A decrease in the diameter of the afferent arteriole has the opposite effect. An increase in the efferent arteriolar diameter (decrease in resis-tance) causes a decrease in the glomerular capillary hydrostatic pressure and a decrease in GFR. A decrease in the diameter of the efferent arteriole has the opposite effect.
Detailed explanation-2: -When the afferent arteriole is larger, more blood would flow into the efferent arteriole, which is of a smaller diameter, resulting in increased blood pressure in the glomerulus.
Detailed explanation-3: -If diameter of both afferent and efferent arteriole is same in kidney. Glomerular filtration is hindered and slows down if the diameter of the efferent arteriole exceeds that of the afferent arteriole.