Advanced Small Intestine Quiz

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This quiz contains 10 questions. Click below to begin.

Q1. Which cells of the small intestine secrete lysozyme and have a defensive role?

  • Paneth cells
  • M cells
  • Goblet cells
  • Enterocytes

Q2. Which segment of the small intestine is retroperitoneal?

  • Duodenum (except first part)
  • Ileum
  • Jejunum
  • Entire small intestine

Q3. Which hormone released by the duodenum stimulates gallbladder contraction?

  • Motilin
  • Cholecystokinin (CCK)
  • Gastrin
  • Secretin

Q4. Which intestinal glands secrete alkaline mucus to protect the duodenum from gastric acid?

  • Brunner’s glands
  • Paneth cells
  • Peyer’s patches
  • Crypts of Lieberkühn

Q5. Which structure carries absorbed fats from the small intestine into circulation?

  • Lacteals
  • Venules
  • Sinusoids
  • Capillaries

Q6. Which immunoglobulin is most abundant in small intestine secretions?

  • IgE
  • IgM
  • IgG
  • IgA

Q7. Which structure forms the brush border of intestinal epithelial cells?

  • Plicae circulares
  • Microvilli
  • Crypts
  • Villi

Q8. In which part of the small intestine does the major duodenal papilla open?

  • Second part of duodenum
  • Terminal ileum
  • Jejunum
  • First part of duodenum

Q9. What is the blood supply to the proximal part of the duodenum?

  • Splenic artery
  • Inferior mesenteric artery
  • Middle colic artery
  • Superior pancreaticoduodenal artery

Q10. Which motility pattern sweeps the small intestine during fasting to clear residual food?

  • Migrating motor complex (MMC)
  • Mass movement
  • Segmentation
  • Peristalsis
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