1 — Cecal veins; 2 — Ileocolic vein; 3 — Ascending colon; 4 — Right colic vein; 5 — Pancreaticoduodenal veins; 6 — Right gastro-omental vein; Right gastro-epiploic vein; 7 — Superior mesenteric vein; 8 — Right gastric vein; 9 — Hepatic portal vein; 10 — Cystic vein; 11 — Inferior vena cava; 12 — Left gastric vein; 13 — Splenic vein; 14 — Left colic flexure; Splenic flexure; 15 — Inferior mesenteric vein; 16 — Middle colic vein;
17 — Jejunal veins, heal veins
