Which of the following is NOT an effect of cholecystokinin (CCK)?

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Relaxes the lower esophageal sphincterEnhances pancreatic enzyme secretionStimulates gastric acid secretionTriggers contraction of the gallbladder

Explanation

Cholecystokinin (CCK) functions to relax the lower esophageal sphincter, increase pancreatic secretions, and cause the gallbladder to contract. However, it does not promote gastric acid secretion.