peritoneal cavity. Etymology: Gk, peri + teinein, to stretch. the potential space between the parietal and visceral layers of the peritoneum, which are normally in contact. The peritoneal cavity is divided into the greater and lesser sac.The greater sac is the peritoneal cavity, and the lesser sac is the omental bursa.he potential space between the parietal and visceral layers of the peritoneum, which are normally in contact. The peritoneal cavity is divided into the greater and lesser sac. The greater sac is the peritoneal cavity, and the lesser sac is the omental bursa.
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.
Abdominal Pain. As mentioned, appendicitis pain is usually localized around your navel when it starts out, but as it intensifies, the pain center seems to migrate from your belly button to the lower abdomen on the right side of your body. This is where your appendix is located, and the pain is caused by the organ swelling up as the infection worsens.