Multiple choice Which blood vessel gives rise to a bunch of capillaries called glomerulus's? Renal vein Renal artery Pulmonary artery Pulmonary vein Reveal answer Fill a bubble to check yourself B Correct answer Explanation The renal artery enters the kidney and branches into smaller arterioles. The afferent arteriole specifically leads into the glomerulus, which is a network of capillaries where blood filtration begins.