Editing Abdominal cavity (section)

===Peritoneum===
{{main|Peritoneum}}
The abdominal cavity is lined with a protective membrane termed the [[peritoneum]].   The inside wall is covered by the [[parietal peritoneum]]. The [[kidney]]s are located behind the peritoneum, in the [[retroperitoneum]], outside the abdominal cavity. The viscera are also covered by [[visceral peritoneum]].

Between the visceral and parietal peritoneum is the [[peritoneal cavity]], which is a potential space.<ref name=EB/> It contains a [[serous fluid]] called [[peritoneal fluid]] that allows motion. This motion is apparent of the [[gastrointestinal tract]]. The peritoneum, by virtue of its connection to the two (parietal and visceral) portions, gives support to the abdominal organs.

The peritoneum divides the cavity into numerous compartments. One of these the [[lesser sac]] is located behind the stomach and joins into the [[greater sac]] via the [[foramen of Winslow]].<ref name=EB/> Some of the organs are attached to the walls of the abdomen via folds of peritoneum and [[ligament]]s, such as the [[liver]] and others use broad areas of the peritoneum, such as the [[pancreas]]. The [[peritoneal ligament]]s are actually dense folds of the peritoneum that are used to connect viscera to viscera or viscera to the walls of the abdomen.<ref name=EB/> They are named in such a way as to show what they connect typically. For example, the [[gastrocolic ligament]] connects the [[stomach]] and [[colon (anatomy)|colon]] and the [[splenocolic ligament]] connects the [[spleen]] and the colon, or sometimes by their shape as the [[round ligament (disambiguation)|round ligament]] or [[Triangular ligament (disambiguation)|triangular ligament]].<ref name=EB/>