Peritoneum – the serous membrane lining the cavity of the abdomen and covering the abdominal organs. The peritoneum serves to support the organs of the abdomen and acts as a conduit for the passage of nerves, blood vessels, and lymphatics. Although the peritoneum is thin, it is made of 2 layers with a potential space between them.
Depending on its location in the abdominal cavity, peritoneum is referred to as either parietal and visceral.
1. Parietal peritoneum: the outermost layer, lining the inner surface of the walls of the abdominopelvic cavity;
2. Visceral peritoneum: the innermost layer, which covers most of the viscera contained within the abdominal cavity.”
* Serous – of, resembling, or producing serum.
* Parietal – of, relating to, attached to, or denoting the wall of the body or of a body cavity or hollow structure.
* Viscera – the internal organs in the main cavities of the body, especially those in the abdomen, e.g. the intestines.
Peritoneal fluid is a fluid found within the peritoneal cavity, which is the space in the abdomen between the abdominal organs and the abdominal wall. It serves several important functions, including lubricating abdominal organs, reducing friction during movement, and providing a medium for nutrient and waste exchange.
The composition of peritoneal fluid includes:
- Water: The main component of peritoneal fluid, providing a fluid medium for its functions.
- Electrolytes: Such as sodium, potassium, chloride, and bicarbonate ions, which help maintain fluid balance and support cellular function.
- Proteins: Including albumin and globulins, which contribute to maintaining the fluid’s osmotic pressure.
- Cells: Peritoneal fluid contains a small number of white blood cells, which play a role in immune responses and defense against infections.
- Other Molecules: Small amounts of glucose, enzymes, hormones, and waste products can also be found in peritoneal fluid.
Peritoneal fluid is important for maintaining the health and functionality of abdominal organs and tissues. Its composition can vary depending on factors such as health conditions and infections.
Leave a Reply