Which anatomic landmark demarcates upper gastrointestinal bleeding from lower gastrointestinal bleeding?
Correct Answer: Ligament of Treitz
Description: The ligament of Treitz, or the peritoneal ligament, which separates the third (retroperitoneal) poion of the duodenum from the fouh (peritoneal) poion of the duodenum, traditionally demarcates upper GI bleeding from lower GI bleeding. Bleeding proximal to this landmark tends to produce melena or black tarry stools. Bleeding distal to this landmark tends to produce hematochezia or red blood per rectum.The ileocecal valve separates the terminal ileum from the cecum.The papilla of Vater is where the pancreatic duct and common bile duct empty into the duodenum.The pylorus is the sphincter separating the stomach from the duodenum.
Category:
Anatomy
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now