What are intraperitoneal and retroperitoneal organs?

What are intraperitoneal and retroperitoneal organs?

Intraperitoneal organs are the organs situated in the interior part of the peritoneal membrane and therefore they are covered by the peritoneum. Retroperitoneal organs are the organs situated behind the intraperitoneal space and therefore, these organs are not covered by the peritoneum.

What is meant by retroperitoneal organs?

The area in the back of the abdomen behind the peritoneum (the tissue that lines the abdominal wall and covers most of the organs in the abdomen). The organs in the retroperitoneum include the adrenal glands, aorta, kidneys, esophagus, ureters, pancreas, rectum, and parts of the stomach and colon.

Where are intraperitoneal organs located?

Intraperitoneal organs are completely wrapped by visceral peritoneum. These organs are the liver, spleen, stomach, superior part of the duodenum, jejunum, ileum, transverse colon, sigmoid colon and superior part of the rectum.

What is the difference between retroperitoneal and Extraperitoneal?

The locations of retroperitoneal structures on a cross-section. The vertebrae, aorta and inferior vena cava (IVC), and kidneys lie posterior to the peritoneum: they lie retroperitoneally. Extraperitoneal structures lie outside the peritoneal cavity.

What is the difference between retroperitoneal and intraperitoneal?

Definition. Intraperitoneal space refers to the space within the peritoneum, which is a thin transparent membrane, lining the abdominal cavity, while retroperitoneal space refers to the space occurring outside the peritoneum.

How do you remember retroperitoneal organs?

One easy way to remember which abdominopelvic organs are retroperitoneal is to use a mnemonic such as SAD PUCKER:

  1. S = Suprarenal (adrenal) glands.
  2. A = Aorta/Inferior Vena Cava.
  3. D = Duodenum (second and third segments)
  4. P = Pancreas.
  5. U = Ureters.
  6. C = Colon (ascending and descending only)
  7. K = Kidneys.
  8. E = Esophagus.

Is the appendix intraperitoneal or extraperitoneal?

Intraperitoneal Structures Intraperitoneal organs include the stomach, the first five centimeters and the fourth part of the the duodenum, the jejunum, the ileum, the cecum, the appendix, the transverse colon, the sigmoid colon, and the upper third of the rectum.

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