1. inferior mesenteric artery
2. ascending colon
3. descending colon
4. inferior vena cava
5. right common iliac artery
6. left common iliac artery
7. left colic artery
8. small bowel
9. small bowel mesentery
10. terminal ileum
11. ileocecal orifice
12. ileocolic artery and vein
13. external oblique
14. internal oblique
15. transversus abdominis
16. linea alba
