II Peritoneum serous membrane lining the abdomen and

II. Peritoneum- serous membrane lining the abdomen and covering abdominal organs A. Parietal peritoneum : serous membrane lining the inner wall of abdomen, pelvic and scrotal cavities A gut B B. visceral peritoneum : serous membrane covering organs of abdominal and pelvic cavities

C. connecting peritoneum double-layered serous membranes A connecting parietal and visceral peritoneums, C or between visceral peritoneums includes: -- mesentaries -- omentums -- ligaments (falciform) gut B

D. peritoneal cavity: A -- potential space between parietal and visceral peritoneum -- contains no organs C D gut B --completely closed in male --open in female at oviduct

D. peritoneal cavity: caudal reflections of peritoneum forms pouches and fossas.

A E C D gut B E. retroperitoneal- term for a structure found between peritoneum and cavity wall (thus, no connecting peritoneum), i. e. kidney, bladder. Also, some portions of the reproductive organs are retroperitoneal.

E. retroperitoneal- term for a structure found between peritoneum and cavity wall (thus, no connecting peritoneum), i. e. kidney, bladder. Also, some portions of the reproductive organs are retroperitoneal.

Peritonitis: localized or general inflammation of the peritoneum primary- causative agents gain access to peritoneal cavity (i. e. ovarian bursa) secondary - as a result of trauma (surgical wound dehiscence, hit by car, gunshot)

The Omentum • A double-layered connecting peritoneum between the stomach and abdominal organs or abdominal wall 1 - Lesser omentum – connect lesser curvature of the stomach and first part of duodenum to the porta of the liver • Gastrohepatic ligament • Hepatoduodenal ligament

The Omentum 2 - Greater omentum – Connect the greater curvature of the stomach to the dorsal abdominal wall • Superficial leaf: extend from the stomach caudally to pelvic inlet where it reflect and returns cranially as the deep leaf • Deep leaf attaches to the dorsal abdominal wall and contains the left lobe of the pancreas between its peritoneal layers

The omentum (bovine) – The lesser omentum arises from the visceral surface of the liver between the porta and the esophageal impression and passes to the region of the reticular groove, the right place of omasum , and then along the lesser curvature of the abomasum to the first part of the duodenum

The omentum (bovine) The greater omentum has two leaves as in the other species: • Superficial leaf arises from the left side of the rumen and deep leaf arise from the right side of rumen. – Both leaves extend ventrally and to the right, – both leaves ascend together along the right abdominal wall to attach to the descending duodenum.

The omentum (bovine) The greater omentum has two leaves as in the other species: – Superficial leaf: attaches the greater curvature of the abomasum and descending duodenum, it extends along the ventral abdominal wall to the left side to attach to the left longitudinal groove of the rumen. – Deep leaf: extends from the right longitudinal groove of the rumen to the descending duodenum

Omental bursa • The omental sheets enclose a space (omental bursa is an important store of fat. – It is completely divided from the peritoneal cavity except at the epiploic foramen (bursal foramen) near the portal of the liver.