Digestive System

1: (c) Covering around each hepatic lobule, 2: (a) Sphincter of Oddi, 3: (a) Duodenum, 4: (c) Liver, 5: (d) Carbohydrate, 6: (c) Salivary amylase, 7: (a) Mucosa, 8: (b) Pepsin, 9: (c) Protein, 10: (d) Milk protein