III. Control of GI secretions
Fig 15-36 ~ know this!- food, protein, vagus nerve, distension: stim. gastrin -- HCl, pepsin, churning, chyme - a.a., f.a., monosacch, low pH in duodenum increase SI secretions: CCK (gb contr., pancreas secr.)+ secretin (pancreas secr.)+VIP, GIP, secret