1 — Hepatic portal vein; 2 — Splenic vein; 3 — Middle colic vein; 4 — Superior mesenteric vein; 5 — Right colic vein; 6 — Ileocolic vein; 7 — Anterior/posterior caecal veins; 8 — Appendicular vein
1 — Hepatic portal vein; 2 — Splenic vein; 3 — Middle colic vein; 4 — Superior mesenteric vein; 5 — Right colic vein; 6 — Ileocolic vein; 7 — Anterior/posterior caecal veins; 8 — Appendicular vein