First slide

Urine Formation

Question

Increase in GFR can be due to

Moderate

A

increase in blood colloidal osmotic pressure
B

increase in capsular hydrostatic pressure
C

increase in capillary blood pressure
D

increase in diameter of the efferent arteriole in comparison to afferent arteriole

Solution

Increase in capillary pressure increases the GFR.
Net filtration pressure (NFP) = Glomerular hydrostatic pressure (GHP) - Blood colloidal osmotic pressure (BCOP) - Capsular hydrostatic pressure (CHP)
So, for GFR to increase, GHP high. BCOP and CHP should be less.
Diameter of the afferent arteriole should be more compared to efferent arteriole for the filtration to take place.

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