GASTRO_INTESTINAL_PPT.pptx by YASHODHA THAGARAM

This PPT explain about gastro intestinal hormones ,their secretion origins and its uses. It will help to people who more knowledge

1. GASTRO INTESTINAL HARMONES BY YASHODHA THAGARAM ( MSc ,Bed ,SET) DL in Zoology

2. Activities of gastro intestinal tract are under neural and hormonal control for proper coordination of different parts Gastric and intestinal secretions are also stimulated by neural signal. Hormonal control of secretions of digestive juices is carried out by the “local harmones ” by gastric and intestinal mucosa as given below.

3. GASTRIN : Gastrin secrete from the epithelium of the stomach ; it stimulates the secretion of hydrochloric acid and pepsinogen.

4. ENTERO GASTRIN OR GASTRIC INHIBITORY PEPTIDE Enterogastrin is secreted by the epithelium of duodenum due to the effect of dietary lipids . it inhibits gastric acidity and gastro-intestinal motility.

5. SECRETIN : Secretin secreted by the epithelium of duodenum and acts on the pancreatic acini, stimulates the secretion of water and bicarbonates of the pancreatic juice.

6. CHOLECYSTOKININ (CCK) OR PANCREOZYMIN CCK is secreted from the epithelium of the duodenum; acts on pancreas and gall bladder and stimulate the secretion of pancreatic enzymes and release of bile .