part of part of tributary of tributary of vessel drains blood from abdomen head of pancreas superior mesenteric vein duodenum uncinate process of pancreas inferior pancreaticoduodenal vein vein of abdomen anterior inferior pancreaticoduodenal vein A vein that is a tributary of the superior mesenteric vein. It drains the ventral surface of the second and third portion of the duodenum and the ventral surface of the head and uncinate process of the pancreas. 2025-05-14T14:34:54Z