1 Charting the Labor Market (monthly)âa package of charts featuring data from the Current Population Survey. 2  Subscribe to the BLS News Service -- receive The Employment Situation news releases by e-mail.
Medical Definition of peritoneal cavity. : a space formed when the parietal and visceral layers of the peritoneum spread apart.
The retroperitoneal space (retroperitoneum) is the anatomical space (sometimes a potential space) in the abdominal cavity behind (retro) the peritoneum.It has no specific delineating anatomical structures. Organs are retroperitoneal if they have peritoneum on their anterior side only.Structures that are not suspended by mesentery in the abdominal cavity and that lie between the parietal peritoneum and abdominal wall are classified as retroperitoneal.The retroperitoneum can be further subdivided into the following:tructures that are not suspended by mesentery in the abdominal cavity and that lie between the parietal peritoneum and abdominal wall are classified as retroperitoneal. The retroperitoneum can be further subdivided into the following: