Re: Questions for the Abdominal Cavity and Development

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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 : : 2. In the male, under non-pathological conditions, the peritoneal cavity is empty except for a film of serous fluid. : T : : 3. In the female, except under non-pathological conditions, the peritoneal cavity has an episodic content. : T- no idea why : : 4. Intraperitoneal structures are located inside the peritoneal cavity. : F-nothing but serous fluid is located inside the peritoneal cavity in non-pathological conditions : : 5. The transverse colon is intraperitoneal. : T : : 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 : : 7. Intraperitoneal structures, by definition, have less than 2/3 of their surface area covered by parietal peritoneum. : F-more than 2/3 : : 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 : : 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 : : 10. The axis of rotation of the gut tube during development is around the superior mesenteric artery. : T : : 11. Reflections of peritoneum at the lesser curvature of the stomach are from the ventral mesentery. : T : : 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 : : 13. The artery of the midgut is the inferior mesenteric artery. : F- superior mesenteric : : 14. The transverse colon marks a transition from foregut to midgut. : F- from midgut to hindgut : : 15. The left colic flexure belongs to the hindgut. : T : : 16. The proximal 2/3 of the rectum is derived from the midgut. : F- hindgut : : 17. The transversalis fascia and the extraperitoneal connective tissue are components of endocavital fascia within the abdominal cavity. : T : : 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 : : 19. The free edge of the facliform ligament marks the most distal persistence of the ventral mesentery. : T?- is it the coronary ligament? : : 20. The epiploic foramen provides a communication between the abdominal cavity and the peritoneal cavity. : F- between greater and lesser sacs : : 21. The tail of the pancreas may extend into the gastroleinal ligament. : F- into the splenorenal ligament : : 22. The hepatogastric ligament plus the hepatoduodenal ligament equals the falciform ligament. : F- they equal the lesser omentum : : 23. Intraperitoneal structures receive their vascular and neural supply by way of visceral ligaments and mesentery. : T? : : 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 : : 25. The pancreatic incisor takes a bite out of the superior mesenteric artery. : ???- I have no idea what this is : : 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 : : 27. A deficit of parasympathetic ganglia within the gut wall leads to a region incapable of peristalsis. : T : : True/False - August 30, 2010 : : 1. The greater omentum, derived from the dorsal mesentery, is positioned anteriorly in the abdominal cavity. : T : : 2. The greater omentum lies anterior to the transverse colon. : T : : 3. The duodenum crosses the posterior surface of the colon. : T- the second and fourth parts cross the transverse colon posteriorly : : 4. Intraperitoneal structures defined by having 3/4 of their surface peritonealized, are not within the peritoneal cavity. : T- (2/3 covered?) : : 5. Intraperitoneal structures defined by having 3/4 of their surface peritonealized, are not within the abdominal cavity. : F- within abdominal, but not within peritoneal : : 6. The celiac, superior mesenteric, and inferior mesenteric arteries form anastomoses at the transition from the foregut to the midgut and from midgut to hindgut. : T- I'm not sure, but the pancreaticoduodenal arteries and the marginal artery of Drummond seen like they would be in the right place for fore-mid/mid-hind anastomoses. : : 7. The right half of the transverse colon is derived from the hindgut. : F- midgut : : 8. The ascending colon is derived from the hindgut whereas the descending colon is derived from the hindgut. : F- ascending=midgut, descending=hindgut : : 9. The greater, lesser, and least splanchnic nerves synapse on postganglionic cell bodies located, respectively, in the celiac, superior mesenteric, and inferior mesenteric paraaortic ganglia. : T? not sure : : 10. At 5 weeks of development there is a 90 degree counterclockwise (AP view) rotation of the alimentary canal around the superior mesenteric artery. : T : : 11. At 10 weeks of fetal development the herniated alimentary canal returns to the abdominal cavity and completes a 270 degree counterclockwise rotation around the inferior mesenteric artery. : F- around the superior mesenteric artery : : 12. The stomach undergoes a 90 degree clockwise rotation so that the original left surface faces anterior. : T- that's one way to put it : : 13. Vagal fibers of the esophageal plexus that were predominately from the left vagus nerve combine to the form the anterior vagus nerve. : T : : 14. The pancreas, except possibly for the tail, is retroperitoneal. : T : : 15. The greater omentum contributes to the lower recess of the omental bursa. : T? as the transverse mesocolon : : 16. The greater omentum folds "back on itself" resulting in four layers of peritoneum that define the omental bursa. : T? : : 17. The posterior two layers of the greater omentum fuse with the transverse mesocolon. : T : : 18. The lesser curvature of the stomach has reflections of original ventral mesentery. : T : : 19. The greater curvature of the stomach has reflections of original dorsal mesentery. : T : : 20. The falciform ligament is derived from ventral mesentery. : T : : 21. Both the spleen and pancreas develop within ventral mesentery. : F- spleen is from dorsal, and most of pancreas is from dorsal : : 22. The tail of the pancreas together with the splenic artery, may become intraperitoneal within the lienorenal ligament. : T : : 23. The omental bursa (lesser peritoneal sac) contains the lesser omentum. : T? the omental bursa defines a border of the lesser sac : : 24. The epiploic foramen (of Winslow) provides the sole communication between the upper and lower recesses of the omental bursa. : F : : 25. The left paracolic gutter provides a route to the hepatorenal recess. : T : : 26. The epiploic foramen provides a communication between the greater sac and the hepatorenal recess. : F : : 27. The parasympathetic nervous system mediates peristalsis of the alimentary canal. : T

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