Gastrointestinal NCLEX Questions Related

Review Gastrointestinal NCLEX Questions related questions and content

Secretin and cholecystokinin are secreted in

  • A. pyloric region
  • B. Ileum
  • C. duodenum
  • D. Oesophagus
Correct Answer: C

Rationale: The correct answer is C, duodenum. Secretin and cholecystokinin are hormones secreted by the duodenal mucosa in response to the presence of acidic chyme from the stomach entering the duodenum. Secretin stimulates the pancreas to release bicarbonate to neutralize the acidic chyme, while cholecystokinin stimulates the gallbladder to release bile to aid in digestion. Choices A (pyloric region), B (Ileum), and D (Oesophagus) are incorrect because secretin and cholecystokinin are not secreted in these regions of the gastrointestinal tract.