8.1 Oral cavity
8.2 Lips
8.3 Tongue
8.4 Palate, uvula and salivary gland
8.5 Oesophagus
8.6 Stomach
8.7 Duodenum
8.8 Intestines
8.10 Rectum and anus
8.11 Liver
8.12 Biliary tract
8.13 Pancreas
8.14 Peritoneal cavity
