1. DIGESTIVE PROCESSES

2. Fatty chyme →→ duodenal bulb →→ secretin →→ blood →→ pancreas
→→ bicarbonate →→ pancreatic ducts →→ duodenum
→→ offsets pH balance

3. Proteinaceous chyme Fatty chyme →→ duodenal bulb →→ cholecystikinin-pancreozymin (CCK) →→ bloodstream →→ pancreas →→ trypsinogen →→ pancreatic ducts→→ duodenum + enterokinase →→ trypsin
Proteinaceous chyme Fatty chyme →→ duodenal bulb →→ cholecystikinin-pancreozymin (CCK) →→ bloodstream →→ pancreas →→ chymotrypsinogen →→ pancreatic ducts→→ duodenum + trypsin →→ chymotrypsin
Trypsin + chymotrypsin →→ reduction of peptones and proteoses →→ di- and tripeptides

4. Proteinaceous chyme Fatty chyme →→ duodenal bulb →→
cholecystikinin-pancreozymin(CCK) →→ bloodstream →→ pancreas
→→ pancreatic lipase →→ pancreatic ducts→→ duodenum →→
reduction of lipids to fatty acids + glycerol
cholecystikinin-pancreozymin (CCK) →→ bloodstream →→
liver + gall bladder→→ release of bile →→
cystic duct + Common hepatic duct →→ common bile duct →→
duoodenum →→ emulsification of fats

5. Gastric chyme ejection↓
stimulates duodenal bulb→→Enterocrinin →→ stimulates intestinal submucosa
villikinin →→ activates intestinal villi

6. fatty chyme ejection gastric inhibitory peptide→→ inhibits gastric secretion↓
stimulates duodenal bulb→→enterorgastrone →→ reduces gastric motion
secretin →→ reduces gastric secretion