Abdomen: Lab 5 checklist

The gut tube
Esophagus/Stomach/Small intestine/ Large intestine

Lab check list

? By the end of this lab students are expected to be able to identify the structures listed and to answer the related questions

? Esophagus (abdominal part):
? Esophageal hiatus/ Right crus of the diaphragm
? Anterior and posterior vagal trunks
? Left gastric vessels

? Stomach
? Cardiac and pyloric orifices
? Greater and lesser curvatures
? Anterior and a posterior surface
? Fundus/ Body/ Pyloric antrum/ Pylorus (pyloric sphincter, pyloric canal)
? Gastrosplenic omentum (ligament)/ greater omentum
? Gastric arteries(R&L)/ Gastroepiploic arteries (R&L)/ short gastric arteries

? Duodenum
? 4 parts (1st - smooth/ others - plicae circulares)
? Major and minor duodenal papilla
? Duodenojejunal flexure
? Suspensory muscle (ligament) of duodenum (ligament of Treitz)
? Duodenal cap

? Jejunum and Ileum
? Plicae circulares
? Mesentery of small intestine/ Arterial arcades/ vasa recta
? Mesenteric border/ Anti-mesenteric border/ root of the mesentery
? Ileocecal junction

? Large intestine
? Cecum/ appendix/ ileocecal valve
? Ascending, transverse, descending, sigmoid colon
? Hepatic flexure/ Splenic flexure
? Tenea coli/ Appendices epiploicae/ Saculations
? Transverse mesocolon/ Phrenico-colic ligament/ sigmoid mesocolon

? Appendix
? Tip/ body/ base
? Mesoappendix
? Appendicular artery

Questions related to lab checklist
? The esophagus connects between two hallow viscera. Name them
? What is the vertebral level of the esophageal hiatus?
? Which part of the diaphragm forms the esophageal hiatus?
? Locate the three sites at which the esophageal lumen is narrow.
? Which of the stomach orifices is a physiological sphincter?
? Which part of duodenum is intraperitoneal?
? If ulcerated, which part of the duodenum is involved?
? Which part of the duodenum receives the opening of the bile duct?
? Which artery passes behind the 1st part of duodenum?
? Mesentery of small intestine is attached posteriorly to_____________
? List the two common locations of the tip of the appendix
? The phrenico-colic ligament separates the supra-colic compartment from ___________________