Regulation of Gastric Secretions

Regulation of Gastric Secretions - Digestive System...

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Digestive System Regulation of Gastric Secretions * Cholecystokinin - secretion is stimulated by partially digested proteins (amino acids) and triglycerides (fatty acids). It inhibits gastric emptying, stimulates the secretion of pancreatic juice rich in digestive enzymes, causes the ejection of bile from the gallbladder, and induces a feeling of satiety (feeling of satisfaction or fullness). Regulation of Gastric Emptying * The regulation of the passage of food from the stomach to the small intestine is so that the small intestine have time for complete digestion of the food before it is moved further along the GI tract and more food is allowed to enter. * This is regulated by both nerves and hormones * Gastric emptying is the fastest with carbohydrates, then proteins, and the slowest with fats Vomiting * The forcible expulsion of the contents of the upper GI tract (stomach and duodenum) through the mouth by the squeezing of the stomach between the diaphragm and the abdominal muscle. * Vomiting can have many stimulants
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Regulation of Gastric Secretions - Digestive System...

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