1 — Anterior caecal artery; 2 — Posterior caecal artery; 3 — Ileocolic artery, ileal branch; 4 — Ileocolic artery, colic branch; 5 — Ileocolic artery; 6 — Ascending colon; 7 — Common iliac artery; 8 — Right colic artery; 9 — Inferior vena cava; 10 — Middle colic artery; 11 — Transverse colon; 12 — Greater omentum; 13 — Superior mesenteric artery; 14 — Left colic flexure; Splenic flexure; 15 — Duodenum; 16 — Abdominal aorta; 17 — Descending colon; 18 — Inferior mesenteric artery; 19 — Left colic artery; 20 — Sigmoid arteries; 21 — Aortic bifurcation; 22 — Superior
rectal artery; 23 — Sigmoid colon