In the kidney, the efferent arteriole has a smaller diameter than the afferent arteriole, and this will:
A)provide for efficient secretion
B)provide for efficient reabsorption
C)keep blood pressure high in the glomerulus
D)keep the pressure of the filtrate low

Question

Quizplus · Accepted Answer

The smaller diameter of the efferent arteriole compared to the afferent arteriole increases resistance to blood flow out of the glomerulus, thereby maintaining higher pressure within the glomerulus. This high pressure is crucial for the process of filtration.

In the Kidney, the Efferent Arteriole Has a Smaller Diameter