Table: Hormones produced by cells of the Alimentary canal Hormone Location action Cholecytstokinin Small Intestine (SI) Contraction of Gall bladder, (CCK) release of pancreatic enzyme Gastric inhibitory SI Inhibits secretion of HCl peptide Gastrin Stomach and duodenum Stimulates secretion of HCl, and gastric enzymes Glicentin Stomach, SI and Large I Stimulates glycogenolysis by hepatocytes Glucagon Stomach and duodenum Stimulates glycogenolysis by hepatocytes Motilin SI Increases intestinal peristalsis Neurotensin SI Decreases peristalsis in intestine, stimulate blood supply to ileum Secretin SI Stimulates secretion of bicarbonate by pancreas Serotonin Stomach, SI and Large I Increases intestinal peristalsis Somatostatin Stomach and duodenum Inhibits DNES cells in its vicinity of release Substance P Stomach, SI and Large I Increases intestinal peristalsis Urogastrone Duodenal (Brunner Inhibits secretion of HCl, increase gland) epithelial mitosis Vasoactive intestinal Stomach, SI and Large I Increases intestinal peristalsis, peptide stimulates secretion of ions and water by the alimentary canal
Table: Hormones produced by cells of the Alimentary canal action Location Hormone Contraction of Gall bladder, release of pancreatic enzyme Small Intestine (SI) Cholecytstokinin (CCK) Inhibits secretion of HCl SI Gastric inhibitory peptide Stimulates secretion of HCl, and gastric enzymes Stomach and duodenum Gastrin Stimulates glycogenolysis by hepatocytes Stomach, SI and Large I Glicentin Stimulates glycogenolysis by hepatocytes Stomach and duodenum Glucagon Increases intestinal peristalsis SI Motilin Decreases peristalsis in intestine, stimulate blood supply to ileum SI Neurotensin Stimulates secretion of bicarbonate by pancreas SI Secretin Increases intestinal peristalsis Stomach, SI and Large I Serotonin Inhibits DNES cells in its vicinity of release Stomach and duodenum Somatostatin Increases intestinal peristalsis Stomach, SI and Large I Substance P Inhibits secretion of HCl, increase epithelial mitosis Duodenal (Brunner gland) Urogastrone Increases intestinal peristalsis, stimulates secretion of ions and water by the alimentary canal Stomach, SI and Large I Vasoactive intestinal peptide
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