Question

The given diagram represents a nephron and its blood supply. Study the diagram and answer the following questions:
State the reason for the high hydrostatic pressure in the glomerulus.

Answer 1

The reason for this greater pressure is that the efferent (outgoing) arteriole is narrower than the afferent (incoming) arteriole. This high pressure causes the liquid part of the blood to filter out from the glomerulus into the renal tubule.