peritoneal cavity Also known as the abdominal cavity, the body cavity of mammals posterior to the diaphragm, containing the liver, spleen, most of the gastrointestinal tract, and other viscera, which almost completely fill it. The term is sometimes used for the perivisceral cavity of other vertebrates. Related category • ANATOMY AND PHYSIOLOGY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |