Re: Questions for the Abdominal Cavity and Development - Part 1

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: : : Questions for the Abdominal Cavity and Development : : : These questions were not submitted by the lecturer. : : : True/False - August 29, 2011 : : : 1. The lesser omentum is a visceral ligament that connects the greater curvature of the stomach to the spleen. : : F-connects liver to lesser curvature and liver to first part of duodenum : Agree. : : : 2. In the male, under non-pathological conditions, the peritoneal cavity is empty except for a film of serous fluid. : : T : Agree. : : : 3. In the female, except under non-pathological conditions, the peritoneal cavity has an episodic content. : : T- no idea why : Agree. Think about every 28 days or thereabouts. The female peritoneal cavity carries a greater risk of peritonitis that does the male. : : : 4. Intraperitoneal structures are located inside the peritoneal cavity. : : F-nothing but serous fluid is located inside the peritoneal cavity in non-pathological conditions : Agree. : : : 5. The transverse colon is intraperitoneal. : : T : Agree. : : : 6. The lesser sac and the greater sac are partitions of the abdominal cavity defined by the walls of transversalis fascia. : : F- defined by peritoneum : Agree. : : : 7. Intraperitoneal structures, by definition, have less than 2/3 of their surface area covered by parietal peritoneum. : : F-more than 2/3 : Agree. : : : 8. The alimentary canal, at its most distal extent, begins with the mouth. : : F- most distal would be the anus, but it does "begin" with the mouth : Agree. : : : 9. A swelling of the alimentary canal becomes the stomach and a diverticulum of the alimentary canal becomes the spleen. : : F- the spleen arises from the dorsal mesentery and is not a diverticulum of the alimentary canal : Agree. : : : 10. The axis of rotation of the gut tube during development is around the superior mesenteric artery. : : T : Agree. : : : 11. Reflections of peritoneum at the lesser curvature of the stomach are from the ventral mesentery. : : T : Agree. The anterior and posterior surfaces of the stomach define the transition from ventral to dorsal mesentery. : : : 12. The foregut includes the esophagus, stomach, and part of the duodenum. : : T- as well as the liver, the pancreas, the gallbladder, and unofficially the spleen : Agree. But, the spleen? : : : 13. The artery of the midgut is the inferior mesenteric artery. : : F- superior mesenteric : Agree. : : : 14. The transverse colon marks a transition from foregut to midgut. : : F- from midgut to hindgut : Agree. Be able to account for the autonomic innervations and lymphatic drainages of the left and right colic flexures. : : : 15. The left colic flexure belongs to the hindgut. : : T : Agree. : : : 16. The proximal 2/3 of the rectum is derived from the midgut. : : F- hindgut : Agree. Thought I might catch somebody. Guess not. : : : 17. The transversalis fascia and the extraperitoneal connective tissue are components of endocavital fascia within the abdominal cavity. : : T : Agree. Thus, the transversalis fascia is not derived from the transversus abdominis muscle. : : : 18. The greater omentum fuses with the transverse mesocolon to form the lesser omentum. : : F- they do fuse, but not to form the lesser omentum : Agree. Gastrocolic ligament contributes to fusion; a surgical approach to the lesser sac. : : : 19. The free edge of the falciform ligament marks the most distal persistence of the ventral mesentery. : : T?- is it the coronary ligament? : Agree. Perhaps not the best question for a technical true/false. The free edge marks the point of no return. The hepatoduodenal ligament defines a second and final free edge of ventral mesentery. No free edges and you have two peritoneal cavities with no lesser/greater sac. : : : 20. The epiploic foramen provides a communication between the abdominal cavity and the peritoneal cavity. : : F- between greater and lesser sacs : Agree. : : : 21. The tail of the pancreas may extend into the gastrolienal ligament. : : F- into the splenorenal ligament : Agree. : : : 22. The hepatogastric ligament plus the hepatoduodenal ligament equals the falciform ligament. : : F- they equal the lesser omentum : Agree. : : : 23. Intraperitoneal structures receive their vascular and neural supply by way of visceral ligaments and mesentery. : : T? : Agree. All intraperitoneal structures have a "bare area." Their vascular/neural supply is like the tail of a kite. The tail blows in either a named visceral ligament or a mesentery. I can't think of an exception. Perhaps you can. : : : 24. Much of the head of the pancreas developed in ventral mesentery. : : T- the ventral pancreas does contribute a significant chunk to the pancreas head : Agree. Uncinate process. : : : 25. The pancreatic incisor takes a bite out of the superior mesenteric artery. : : ???- I have no idea what this is : Agree. Alias the pancreatic notch. Transmits the superior mesenteric artery. Partly formed by our friend, the uncinate process. Embryo redux. : : : 26. The part of the chief pancreatic duct, at the joining with the common bile duct, developed within the dorsal mesentery. : : F- the chief duct is from the ventral pancreas from the ventral mesentery : Agree. : : : 27. A deficit of parasympathetic ganglia within the gut wall leads to a region incapable of peristalsis. : : T : Agree. And blockage.

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