Parietal peritoneum - layers lining the surface walls
Visceral peritoneum - layer that covers a larger continuous layer like pleura
Retroperitoneal - situated outside the peritoneum in contact with body wall
Intraperitoneal - suspended from the abdo wall by a double layered fold of peritoneum
| Intraperitoneal organs | Secondary retroperitoneal (lost a mesentery) | Primary retroperitoneal (never had a mesentery) |
|---|---|---|
| * Stomach * Liver * Gallbladder * Spleen * Duodenum 1st part * Tail of pancreas * Jejunum * Ileum * Appendix * Transverse colon * Sigmoid colon | * Duodenum 2nd + 3rd part * Head, neck & body of pancreas * Ascending colon * Descending colon * Upper rectum | * Kidneys * Adrenal glands * Ureters * Aorta * IVC * Lower rectum |