The parietal peritoneum is a serous membrane covering the inner surface of the abdominopelvic cavity, including the anterior and posterior walls of the abdomen, the inferior surface of the diaphragm and the walls and floor of the pelvic cavity. It consists of a simple squamous epithelium and is continuous with the visceral peritoneum, which reflects off from the abdominal wall and surrounds organs.
The parietal peritoneum continuously lines the abdominal walls and forms the sac called the peritoneal cavity, which is the slim potential space containing peritoneal (serous) fluid. This serous fluid acts as a lubricant and prevents friction, allowing the parietal and visceral peritonea to slide against each other freely. Structures that are not suspended into the peritoneal cavity and instead are found between the parietal peritoneum and the abdominal wall are termed retroperitoneal. The parietal peritoneum will typically cover just the anterior surface of these structures, providing structural support and acting as a barrier against pathogens.
English: Parietal peritoneum
Latin: Peritonaeum parietale
Synonym: Peritonaeum parietale
|Location||Lines the walls of the abdominopelvic cavity|
|Function||Structural support and protection of abdominal organs, lubrication of peritoneal cavity.|
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