MeSH definition : Veins which return blood from the intestines; the inferior mesenteric vein empties
into the splenic vein, the superior mesenteric vein joins the splenic vein to form
the portal vein.;
Veins which return blood from the intestines; the inferior mesenteric vein empties
into the splenic vein, the superior mesenteric vein joins the splenic vein to form
the portal vein.