Peritoneum. A tissue that lines the abdominal wall and covers most of the organs in the abdomen. Peritoneal fluid lines the tissue as a lubricant.


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Your peritoneum is the tissue that lines your abdominal wall and covers most of the organs in your abdomen. A liquid, peritoneal fluid, lubricates the surface of this tissue.

Source: MedLinePlus (NIH)2

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Peritoneum: A membrane of squamous Epithelial Cells, the mesothelial cells, covered by apical Microvilli that allow rapid absorption of fluid and particles in the Peritoneal Cavity. The peritoneum is divided into parietal and visceral components. The parietal peritoneum covers the inside of the Abdominal Wall. The visceral peritoneum covers the intraperitoneal organs. The double-layered peritoneum forms the Mesentery that suspends these organs from the abdominal wall.3

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  1. Source: RDCRN (NCATS/NIH): cms/ cegir/ Learn-More/ Glossary
  2. Source: MedLinePlus (NIH): peritonealdisorders.html
  3. Source: MeSH (U.S. National Library of Medicine)

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