Intraperitoneal and retroperitoneal organs.

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Intraperitoneal Organs

During development some organs grow inside the peritoneal cavity, these are called intra peritoneal organs

Retroperitoneal Organs

Some organs grow outside the peritoneal cavity, these are retroperitoneal organs

eg:Kidney,Ureter.

Secondary retroperitoneal organs

Some organs grow in the intraperitoneal space during fetal period but become extraperitoneal during later development.These organs are called Secondary retroperitoneal organs.

eg:Duodenum,pancreas,Ascending Colon,Descending colon.

Intraperitoneal organs

  1. Esophagus
  2. Stomach
  3. Jejunum
  4. Ileum
  5. Caecum
  6. Appendix
  7. Transverse colon
  8. Sigmoid colon

Extraperitoneal organs

  1. Duodenum
  2. Pancreas
  3. Ascending colon
  4. Descending colon
  5. Transverse colon
  1. what is spleen? extraperitoneal?

  2. spleen is intraperitoneal(quote from snell clininc anatomy)

  3. I think oesophagus is a retroperitoneal organ. Isn’t it?

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