PHYSIOLOGY
GASTROINTESTINAL PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Upper part of the small intestine
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oral portion of stomach
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caudal portion of stomach
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distal portion of the esophagus
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Detailed explanation-1: -GIP is secreted by the enteroendocrine K-cells that are present in high density in the duodenum and upper jejunum but are present throughout the small intestine.
Detailed explanation-2: -Foods high in lipids (fatty foods) take a long time to digest. A hormone called gastric inhibitory peptide is secreted by the small intestine to slow down the peristaltic movements of the intestine to allow fatty foods more time to be digested and absorbed.
Detailed explanation-3: -GIP appears to enhance the release of insulin and glucagon, and may be responsible for some cases of hypoglycemia. It stimulates small intestinal secretion, and inhibits the basal and stimulated secretion of acid by the stomach, the secretion of pepsin, the release of gastrin, and the motility of the stomach.