What is the lining of the abdominal cavity called?

The lining of the abdominal cavity is known as the peritoneum. This thin membrane plays a crucial role in supporting the organs located within the abdominal cavity and has various functions, including providing a slippery surface that reduces friction between the organs during movement. The peritoneum is divided into two layers: the parietal peritoneum, which lines the abdominal wall, and the visceral peritoneum, which covers the abdominal organs. Understanding the peritoneum's structure and function is essential for recognizing various medical conditions and their management within the gastrointestinal system.