Peritoneum Flashcards
What does the peritoneum secrete?
Serous fluid
Subperitoneal structures
-The superior surface of the structure is covered by parietal peritoneum
-They are inferior to the peritoneal cavity
Retroperitoneal structures
-The anterior surface of the structure is covered by parietal peritoneum
-They are posterior to the peritoneal cavity
Intraperitoneal structures
-They are completely enclosed within the parietal peritoneum and lined with visceral peritoneum
What functions does the peritoneal cavity have?
-Keeps surfaces moist
-Allows for free movement of viscera
-Contains immune cells to resist infection
What anchors the intraperitoneal structures?
Mesentery
Which structures are the most mobile?
Intraperitoneal structures
List all of the intraperitoneal structures
-Stomach
-Spleen
-Liver
-Transverse colon
-Sigmoid colon
-Small intestines
-Appendix
List all of the retroperitoneal structures
-Esophagus
-Small intestines (part of the duodenum)
-Large intestines
-Pancreas (except tail)
-Abdominal aorta
-Inferior vena cava
-Kidneys
List all of the subperitoneal structures
-Distal rectum
What is the pathway for neurovascular structures to/from viscera?
The mesentery
What makes up the mesentery?
Two layers of peritoneum
Lesser omentum
-Double layered peritoneal fold
-Lesser curvature of stomach and proximal part of the duodenum to the liver
-Comprised of two peritoneal ligaments
What are the two peritoneal ligaments?
Hepatogastic ligament: membranous
Hepatoduodenal ligament: thickened free-edge
What does the hepatoduodenal ligament conduct?
Portal triad
Greater omentum
-Four layered (2x double layers) peritoneal fold
-Descends from greater curvature of stomach and proximal part of the duodenum, folds at the bottom, then attaches to the transverse colon
-Continuous with peritoneum that invests transverse colon
Omental bursa
-Posterior to the stomach and lesser omentum
-Has superior and inferior peritoneal recesses
-The inferior recess runs between the two double layers of the greater omentum
Greater sac
-Main and larger part of the peritoneal cavity
How do the two peritoneal sacs communicate?
Through the omental foramen, which is right where the hepatoduodemal ligament
Which peritoneal layers is the omental bursa between?
Between the posterior visceral peritoneum of the stomach and the parietal peritoneum on the body wall
