Peritoneal Cavity Flashcards
What is the epiploic foramen?
Passage between the greater + lesser sac
-Opening to lesser sac (tent)-
What B.V.’s does the Gastrophrenic L. contain?
Posterior gastric A.
What B.V.’s does the splenorenal L. contain?
Splenic A.
What B.V.’s does the gastrosplenic A. contain?
short gastric A. + left gastroomental A.
What adult structures come from the ventral mesentary?
The lesser omentum (Hepatoduodenal L. + Hepatogastric L) and the Falciform L.
*Basically things surrounding liver*
Why are pararectal spaces important?
Thats’s where you drain absesses (paracentesis) excess fluid in peritoneal cavity (want to drain @ most inferior point)
Spleen Relationships
What artery is important for pancreatic cancer?
Superior mesenteric A. + V.
How can the pancreas enter the lesser sac?
Anterior rupture
What B.V.’s does the Gastrocolic L. contain?
Left + Right Gastroomental A.
Deepest part fluid collects?
For men
For women
Rectovesicular
Rectouterine
What arteries run through the transverse mesocolon?
Middle colic A. + Marginal A.
What arteries run through the root of the mesentery?
Iliocolic A.
What is the visceral peritoneum? Sensitive to? Where do their neurovascular supply come from?
- Covers the organs 2. Sensitive to stretch + chemical irritation 3. Supplied by same nerves as organ
How can stomach contents enter the lesser sac?
A posterior rupture. This is good cause the rupture is contained in the sac!
What is the lesser sac also known as?
Omental bursa
What is the lesser omentum?
The lesser omentum is the double layer of peritoneum that extends from the liver to the lesser curvature of the stomach
What structures make up the greater omentum?
Gastrophrenic L. (diaphragm) + Gastrosplenic L + Gastrocolic L.
What structures are retroperitoneal?
Suprarenal
Aorta/IVC
Duodenum (2,3,4)
Pancreas
Ureters
Colon (A+D)
Kidneys
Esophagus
Rectum
What structures come from the dorsal mesentery?
Splenorenal L. + Gastrosplenic L.
*Basically covers the splen + stomach*
What arteries run through the mesentery?
Ilio A. + Jujunal A. + Superior mesenteric A.
What are paracolic gutters and why are they important?
The paracolic gutters are spaces between the colon and the abdominal wall. *Allow for free communication between compartents*
These gutters are clinically important because they allow a passage for infectious fluids from different compartments of the abdomen. For example; fluid from an infected appendix can track up the right paracolic gutter to the hepatorenal recess.
What B.V.’s does the Hepatoduodenal L. contain?
Proper hepatic A.
Cystic A.
Right gastric A.
Explain relationships of greater + lesser sac
What is the greater ommentum?
Covers the small intestines like an apron (starts at greater curvature of stomach and goes down)
What is the parietal peritoneum? Sensitive to? Where do their neurovascular supply come from?
- Lines the body wall 2. Sensitive to pressure, pain, temp 3. Supplied by same nerves as region of wall it lines
What is the pringle maneuver?
Put fingers in the epiploic foramen and compress the lesser sac
What B.V.’s does the Hepatogastric L. contain?
Right + left gastric A.’s
Intraperitoneal vs Retroperitoneal
Intraperiotneal: mostly covered w/ visceral periotneum (mesentery has 2 layers)
Attached to posterior body wall, but can move around
Retroperitoneal: only partially covered w/ peritoneum
Fused to posterior body wall + cannot move
What ligaments make up the lesser omentum?
Gastrohepatic L. + Hepatoduodenal L. (containing portal triad)
What arteries run through the sigmoid mesocolon?
Sigmoid A.
