Multiple choice An opening through which arteries and veins enter or leave the kidney is called as renal pore hilum major calyces minor calyces Reveal answer Fill a bubble to check yourself B Correct answer Explanation Hilum is the medial indentation where renal artery, renal vein, ureter, and nerves enter/exit the kidney. Calyces collect urine from renal pyramids. 'Renal pore' is not an anatomical term.