Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Mesenteric vein
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Mesenteric vein: One of the large veins which return blood from the intestines.
The inferior (lower) mesenteric vein empties into the splenic vein. The superior (upper) mesenteric vein then joins the splenic vein to create the portal vein which goes to the liver.