In Glomerulus Afferent Arteriole?

The afferent arteriole is the arteriole that brings blood to the glomerulus. It is larger in diameter than the efferent arteriole

. ... When the afferent arteriole is larger, more blood would flow into the efferent arteriole, which is of a smaller diameter, resulting in increased blood pressure in the glomerulus.

How do efferent and afferent glomerular arterioles differ?

Afferent arteriole is a branch of the renal artery that brings in blood to the glomerulus. Efferent arteriole is a branch of the renal artery that drains blood away from the glomerulus. Afferent arteriole carries blood to the glomerulus. Efferent arteriole takes blood away from the glomerulus.

What is the role of afferent arteriole on glomerular filtration?

The afferent and efferent arterioles constrict in response to α-adrenergic stimulation. This vasoconstriction predominantly affects the afferent arteriole, effectively reducing hydrostatic pressure within the glomerular capillary lumen and decreasing glomerular filtration.