From Wikipedia, the free encyclopedia. The peritoneal cavity is a potential space between the parietal peritoneum and visceral peritoneum, that is, the two membranes that separate the organs in the abdominal cavity from the abdominal wall.he peritoneal cavity is the largest serosal sac in the body and secretes approximately 50 ml of fluid per day. This fluid acts as a lubricant and has anti-inflammatory properties.
The appendix is located in the lower right portion of the abdomen.The spleen is tucked under the left side of the diaphragm.
1 The appendix is located at the lower right quadrant of the abdomen and it is connected to the cecum which is part of the large intestine. 2  The cecum is a pouch at the beginning of the large intestine and not the end, the end is the anus. Your appendix is located at the end of your large intestine. 2  It is normally located in the lower right quarter of the abdomen. 3  Checking my scar... 4  It is (or should I say was) on the lower right side of the abdomen, about half way between the top of the right hip bone and the belly button.