(Return to Courseware Index) LAB MANUAL |Topic and Text Reference | Learning Objectives | Special Instructions | Clinical Exercises | Key Structures TOPIC AND TEXT REFERENCE: PERITONEUM AND PERITONEAL CAVITY PP. 73-77 LEARNING OBJECTIVES: Understand the difference between the peritoneal cavity and the abdominal cavity. Identify and understand the borders of the peritoneal cavity. Identify the esophagus, liver, stomach, small intestine, ascending, transverse colon, descending colon, appendix, spleen, gall bladder, and rectum. Identify the greater and lesser omenta and their relationship to each other. Understand the concept of greater and lesser sacs. Learn and observe the borders of the lesser sac. Understand the difference between intraperitoneal, retroperitoneal and secondarily retroperitoneal organs. SPECIAL INSTRUCTIONS FOR LAB TODAY: Pg. 74: When making the midline incision go slowly and make sure that you do not accidently cut into the internal organs ( it would be exceedingly messy!). Do NOT use scissors when examining the peritoneal cavity. If there are adhesions that need to be broken, use your hands. Pg. 76: The greater omentum varies considerably in cadavers. Please make sure you locate and understand the various peritoneal specializations that include the paracolic gutters, gutters to the left and right of the mesentery and the hepatorenal pouch. CLINICAL CORRELATIONS AND EXERCISES: List the organs typically found in each quadrant of the abdomen. How can you gain surgical access to the lesser sac? How does infection spread around the peritoneal cavity? KEY STRUCTURES: You should be able to identify in a cadaver all the structures listed under key words unless they have an asterisk. structure Netter's Gold Standard structure Netter's Gold Standard Gutters     Mesocolon        gutter to the left of the mesentery (paramesenteric)   G1 sigmoid mesocolon N1 G1    gutter to the right of the mesentery (paramesenteric)   G1 transverse mesocolon N1 G1    paracolic - left N1 G1 Omentum        paracolic - right N1 G1    greater omentum N1 G1 Ligaments        lesser omentum (lesser sac) N1 G1    falciform ligament N1 G1    omental foramen N1      hepatoduodenal ligament N1 G1 rectum N1      hepatogastric ligament N1 G1 retroperitoneal organ        ligament of Treitz N1   root of the mesentery N1      ligamentum teres N1 G1 secondarily retroperitoneal        phrenicocolic ligament N1   Small Intestine     Other structures        duodenum - first part N1 G1 anal canal N1      duodenum - second part N1 G1 appendices epiploicae N1 G1    duodenum - third part N1 G1 Appendix N1 G1    duodenum - fourth part N1 G1 Cecum N1 G1 duodenojejunal junction (flexure) N1 G1 Colon        ileum N1 G1    ascending colon N1 G1    jejunum N1 G1    descending colon N1 G1 spleen N1 G1    left colic flexure (splenic flexure) N1   subphrenic recess        right colic flexure N1 G1 Stomach        sigmoid colon N1 G1    greater curvature of stomach N1 G1    transverse colon N1 G1    lesser curvature of stomach N1 G1 diaphragm N1 G1    pylorus N1 G1 gallbladder N1 G1 teniae coli NP G1 haustra N1 G1       hepatorenal pouch           ileoceccal orifice N1 G1       intraperitoneal organ           Liver N1 G1                                                     |Topic and Text Reference | Learning Objectives | Special Instructions | Clinical Exercises | Key Structures

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