Anatomy General dc9b6b49 Superior rectal vein drains into? A Inferior mesenteric vein B External iliac vein C Internal iliac vein D Internal pudendal vein High-Yield Explanation Ans. is 'a' i.e., Inferior mesenteric veinSuperior rectal vein drains into inferior mesenteric vein.Inferior rectal vein drains into internal pudendal vein.