1. Hormonal Control of Digestion Chap 12 p 220

2. What are hormones?

4. Hormones: A substance made by one set of cells that affects a different, specific set of cells Endocrine Function: transported to target in blood

6. Hormones in Digestion HormoneStimulated By: Made By:Site of Action Description of Action 1. GastrinHigh protein meal By lower stomach Upper Stomach Increases production of Gastric Juice

7. Hormones Digestion HormoneStimulated By: Made By:Site of Action Descriptio n of Action 2. Gastrin Inhibitory Peptide (GIP) Increased activity of gastral glands Duodenum (first part of small intestine) Upper Stomach INHIBITS production of gastric juice

9. Hormones in Digestion HormoneStimulated By: Made By:Site of Action Description of Action 3. SecretinAcid in chyme DuodenumPancreas Gallbladder Stimulates release of pancreatic juices & of bile

10. Hormones Digestion HormoneStimulated By: Made By:Site of Action Description of Action 4. CCK (CholeCystoKinin) Partially digested protein & fat DuodenumPancreas Gallbladder Stimulates pancreatic juices Stimulates release of bile

11. The Small Intestine Pg 219-220

12. Small Intestine Chemical Digestion  in Duodenum (first 25cm) Absorption  Villi