1 — Superior rectal artery; 2 — Appendix; Vermiform appendix; 3 — Jejunal arteries; Ileal arteries; 4 — Ascending colon; 5 — Ileocolic artery; 6 — Right colic artery; 7 — Duodenum; 8 — Middle colic artery; 9 — Marginal artery; Juxtacolic artery; Marginal arcade; 10 — Vasa recta; Straight arterioles; 11 — Transverse colon; 12 — Abdominal aorta; 13 — Superior mesenteric artery; 14 — Left colic artery; 15 — Descending colon; 16 — Inferior mesenteric artery; 17 — Sigmoid colon; 18 — Sigmoid arteries; 19 — Rectum
