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Parietal peritoneum

Peritoneum
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The peritoneum, colored in blue
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The epiploic foramen, greater sac or general cavity (red) and lesser sac, or omental bursa (blue).
Details
Identifiers
Latin Peritoneum
MeSH A01.047.025.600
Code TH H3.04.08.0.00001
TA A10.1.02.002
FMA 9584
Anatomical terminology
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The peritoneum /ˌpɛrtəˈnəm/ is the serous membrane that forms the lining of the abdominal cavity or coelom in amniotes and some invertebrates, such as annelids. It covers most of the intra-abdominal (or coelomic) organs, and is composed of a layer of mesothelium supported by a thin layer of connective tissue. The peritoneum supports the abdominal organs and serves as a conduit for their blood vessels, lymph vessels, and nerves.

The abdominal cavity (the space bounded by the vertebrae, abdominal muscles, diaphragm, and pelvic floor) should not be confused with the intraperitoneal space (located within the abdominal cavity, but wrapped in peritoneum). The structures within the intraperitoneal space are called "intraperitoneal" (e.g. the stomach), the structures in the abdominal cavity that are located behind the intraperitoneal space are called "retroperitoneal" (e.g. the kidneys), and those structures below the intraperitoneal space are called "subperitoneal" or "infraperitoneal" (e.g. the bladder).


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