Hydrostatic pressure is the primary driving force of plasma through the filtration membrane into the capsular space.All but one of the following statements reflects why hydrostatic pressure is so high in the glomerular capillaries.Select the one statement that does not explain the high pressure within the glomerular capillaries.
A) The diameter of the efferent arteriole is smaller than the afferent arteriole.
B) The volume of plasma in the efferent arteriole is higher when compared to the afferent arteriole.
C) The efferent arteriole has higher resistance to blood flow than the afferent arteriole.
D) The flow of blood is reduces as blood reaches the efferent arteriole.

Question

Quizplus · Accepted Answer

The volume of plasma in the efferent arteriole is higher when compared to the afferent arteriole, which increases the hydrostatic pressure within the glomerular capillaries. However, the statement in option A is incorrect because the diameter of the efferent arteriole is smaller than the afferent arteriole, which increases the resistance to blood flow and further increases the hydrostatic pressure. Option C is also correct because the efferent arteriole has higher resistance to blood flow due to its smaller diameter. Option D is also correct because the flow of blood is reduced as it passes through the efferent arteriole, which further increases the pressure within the glomerular capillaries.

Hydrostatic Pressure Is the Primary Driving Force of Plasma Through