Gastroenterology Quiz #1: Gastrointestinal Anatomy and Embryology

1. A 25-year-old man presents to the emergency department with severe abdominal pain. Upon examination, it is found that he has a congenital anomaly resulting in the absence of ganglion cells in the distal colon. Which of the following is the most likely diagnosis? 

Question 1 of 5

2. During an anatomy dissection, a student notes that the liver receives blood from two primary sources. One of these sources provides oxygen-rich blood, while the other supplies nutrient-rich blood from the gastrointestinal tract. Which of the following vessels is responsible for delivering nutrient-rich blood to the liver? 

Question 2 of 5

3. A 30-year-old woman presents with jaundice, weight loss, and a palpable mass in the right upper quadrant of her abdomen. Imaging studies reveal a tumor located at the junction where the common hepatic duct and the cystic duct meet. This junction is best known as which of the following? 

Question 3 of 5

4. A newborn is diagnosed with omphalocele, a condition where the intestines are located outside of the body cavity due to a defect in the development of the abdominal wall. This condition is most closely associated with abnormalities in which of the following embryological processes?

Question 4 of 5

5. A 45-year-old man undergoes a liver biopsy after abnormal liver function tests. Histological examination reveals the presence of numerous bile canaliculi between hepatocytes, which play a crucial role in bile secretion. These structures are directly involved in which of the following physiological processes?

Question 5 of 5


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