Function of c hormo 1. Regulate the secretion and motilityof Gi tract Gastrin HCI secretion, gastric empty 2. Trophic action Gastrin stomach and duodenum mucosa 3. Regulate the release of other hormones GIP Insulin GH, gastrin 1515 Function of GI hormones 1. Regulate the secretion and motility of GI tract Gastrin HCl secretion, gastric empty 2. Trophic action Gastrin stomach and duodenum mucosa 3. Regulate the release of other hormones GIP insulin SS GH, gastrin