Anatomy Upper Gastrointestinal Tract Questions and Answers

Question 1

A surgeon performing an emergency procedure needs to clamp the structures within the hepatoduodenal ligament to control bleeding from the liver.
Which of the following structures would be occluded by this maneuver?

Accepted Answer

Hepatic artery proper, hepatic portal vein, and common bile duct

Answer

Hepatic artery proper, hepatic portal vein, and splenic vein

Answer

Gastroduodenal artery, common bile duct, and inferior vena cava

Answer

Right gastric artery, cystic duct, and hepatic veins

Question 2

A patient is diagnosed with a peptic ulcer in the first part of the duodenum (duodenal bulb). This region is unique because, unlike the other three parts of the duodenum, it is:

Accepted Answer

Intraperitoneal

Answer

Primarily supplied by the inferior mesenteric artery

Answer

Characterized by the presence of Brunner's glands

Answer

The site where the common bile duct enters

Question 3

The celiac trunk is the primary arterial supply to the foregut. Which of its three main branches provides the main arterial supply to the lesser curvature of the stomach and the abdominal part of the esophagus?

Accepted Answer

Left gastric artery

Answer

Common hepatic artery

Answer

Splenic artery

Answer

Gastroduodenal artery

Question 4

A patient with severe gastroesophageal reflux disease (GERD) undergoes an endoscopy. The physician notes an abrupt change in the epithelial lining at the Z-line (gastroesophageal junction). What is the normal histological transition observed at this junction?

Accepted Answer

Stratified squamous to simple columnar epithelium

Answer

Simple columnar to stratified cuboidal epithelium

Answer

Simple columnar to pseudostratified ciliated columnar epithelium

Answer

Stratified squamous to transitional epithelium

Question 5

During a gastroscopy, a physician observes prominent longitudinal folds on the inner surface of an empty stomach. These folds, which allow the stomach to expand significantly after a meal, are known as:

Accepted Answer

Rugae

Answer

Plicae circulares

Answer

Haustra

Answer

Villi

Question 6

In a patient with liver cirrhosis, portal hypertension can cause venous blood to back up into the systemic circulation. Which vein, draining the abdominal part of the esophagus and being a tributary of the portal system, is a key site for the formation of esophageal varices?

Accepted Answer

Left gastric vein

Answer

Azygos vein

Answer

Hemiazygos vein

Answer

Inferior thyroid vein