PHYSIOLOGY
GASTROINTESTINAL PHYSIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cholecystokinin and Secretin Increase both gastric secretion and motility
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Gastrin secretion is Stimulated by the digestive products of fat
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Somatostatin is a powerful stimulator to both gastric secretion and motility
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Vasoactive Intestinal Peptide (VIP) inhibit gastric Secretion
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Detailed explanation-1: -CCK has a multitude of effects inhibiting gastrin secretion, gastrointestinal motility and gastric acid secretion [16]; most of these effects are mediated through activation of the primary target of CCK, that is, vagal afferent fibers.
Detailed explanation-2: -Gastrointestinal (GI) peptides are small peptides, generally produced and secreted by gut endocrine cells, that modulate the functions of various tissues including the brain, digestive accessory organs (e.g., liver and pancreas), stomach, and intestine.
Detailed explanation-3: -What is gastrin? Gastrin is a hormone that is produced by ‘G’ cells in the lining of the stomach and upper small intestine, and released into the blood circulation. During a meal, gastrin stimulates the stomach to release gastric acid (hydrochloric acid).