Peritoneal cavity is the serous membrane that invests viscera.
From the scienceblog.com
The pleura is a serous membrane which folds back onto itself to form a two-layered, membrane structure.
From the en.wikipedia.org
Both the abdominal and pelvic cavities are lined by a serous membrane known as the parietal peritoneum.
From the en.wikipedia.org
In the lower part, near the outlet of the urinary passage, this membrane is pierced by large ducts, or lacunae, through which pituito-serous matter occasionally discharges in considerable quantities.