Secretions:
| What | Source |
|---|---|
| Bile salts | Liver |
| Bicarbonate ions | Pancreas |
| Trypsin, chymotrypsin, carboxypeptidase | Pancreas |
| Lipase | Pancreas |
| Pancreatic amylase | Pancreas |
| Nucleases | Pancreas |
| Mucus | Goblet cells |
| Peptidases | Small intestine |
| Sucrase, lactase, maltase | Small intestine |
Absorptions
| What | Where |
|---|---|
| Carbohydrates | Small intestine |
| Proteins | Small intestine |
| Lipids | Small intestine |
| Fat soluble vitamins | Small intestine |
| Water soluble vitamins | Small intestine |
| B12 | Ileum |
| Bile salts | Ileum |
| Iron | Duodenum |