ATI LPN
NCLEX Questions Gastrointestinal System Questions
Question 1 of 5
The length of intestinal villi is about:
Correct Answer: B
Rationale: Villi are approximately 0.5-1 mm long, enhancing absorption.
Question 2 of 5
The principal function for intestinal enteroendocrine cells is:
Correct Answer: B
Rationale: Enteroendocrine cells secrete hormones like CCK and secretin.
Question 3 of 5
The mucosal surface of the stomach is protected from digestion by:
Correct Answer: B
Rationale: Surface mucous cells secrete a protective mucus barrier.
Question 4 of 5
The structural unit of liver tissue, centered around a central vein with branches of the hepatic artery, portal vein and bile duct at the corners, is called a:
Correct Answer: C
Rationale: The hepatic lobule is the structural unit centered on a central vein.
Question 5 of 5
A vascular passageway between adjacent hepatic cords is called a:
Correct Answer: D
Rationale: Sinusoids allow blood flow between cords.