A) When hydrostatic pressure of blood in the glomerulus is 70 mm Hg and net filtrate pressure is -25 mm Hg
B) When hydrostatic pressure of blood in the glomerulus is 70 mm Hg and not filtrate pressure is -35 mm Hg
C) When hydrostatic pressure of blood in the glomerulus is 70 mm Hg and net filtrate pressure is 10 mm Hg
D) When hydrostatic pressure of blood in the glomerulus is 70 mm Hg and net filtrate pressure is -70 mm Hg
Correct Answer: C
Solution :
Ultra filtration occurs due to GHP (Glomerular hydrostatic pressure). GHP is due to narrow efferent arteriole. It is about 60-75 mm Hg. The colloid osmotic and capsular hydrostatic pressures are respectively about 32 mm Hg and 18 mm Hg, which resist ultrafiltration. Thus net effective filtration pressure is about 10 (60 - 32 + 18) mm Hg.
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