In the kidney,blood pressure in the glomerulus is high because:
A)the efferent arteriole has a smaller diameter than the afferent arteriole
B)the efferent arteriole has a larger diameter than the afferent arteriole
C)the afferent arteriole is a direct branch of the inferior vena cava
D)the efferent arteriole is a direct branch of the abdominal aorta

Question

Quizplus · Accepted Answer

The blood pressure in the glomerulus is high because the efferent arteriole has a smaller diameter than the afferent arteriole. This creates a resistance to blood flow, leading to an increase in pressure within the glomerulus, which is necessary for filtration of the blood.

In the Kidney,blood Pressure in the Glomerulus Is High Because