| Term | Definition |
| Liver | Largest organ in the body |
| Liver functions | formation and excretion of bile, vitamin and mineral storage, detoxification of blood |
| Hepat/o | combining form for liver |
| Hepatitis | inflammation of the liver |
| Cirrhosis | Chronic liver disease marked by degeneration of liver cells and resistance to blood flow through liver |
| Jaundice | characterized by yellowness of the skin, whites of the eyes, mucous membranes and body fluid |
| Bile | Fluid that is formed in the liver and released through the hepatic duct where it is then stored in the gall bladder |
| Chol/o | combining form for bile/gall |
| Cyst/o | combining form for bladder or sac |
| Cholecyst/o | combining form for gall bladder |
| Pancreas | has both digestive and hormonal functions |
| Pancreat/o | combining form for the pancreas |
| Pancreatitis | inflammation of the pancreas |
| Pancreas | releases insulin which is essential for proper use of sugar in the body |
| Salivary glands | moisten mouth and food making it easier to swallow |
| Sial/o | combining form for saliva or salivary glands |
| three salivary glands | parotid, submaxillary, sublingual |
| parotid | located near the ear |
| submaxillary | located under the upper jaw bone |
| sublingual | located beneath the tongue |
| Vagus nerve | controls gastric secretions |
| Lavage | irrigation or washing out of an organ such as the stomach or bowel |
| -clysis | suffix meaning to wash out an organ |
| coloclysis | irrigation of the colon |
| -pexy | suffix meaning surgical fixation (fastening an organ in a permanent position) |
| Colopexy | Surgical fixation of the large intestines |
| -Pepsia | suffix that refers to digestion |
| dyspepsia | means difficult or bad digestion |
| eupepsia | normal digestion |
| -eu | prefix meaning good |
| Fats | oil based substances in nutrition and body composition |
| Lip/o | combining form for fats |
| lipopenia | deficiency of fats |
| Protein | nitrogen containing compounds in nutrition and body composition |
| Prote/o | combining form for protein |
| proteolysis | breaking down of protein |
| Carbohydrates | AKA sugars |
| Glyc/o | combining form for sugar |
| Hyperglycemia | excessive blood sugar |
| -Ose | suffix meaning sugar |
| Glucose | Type of sugar found in blood |
| Starch | Complex carbohydrates found in plants |
| Amyl/o | combining form for starch |
| Ase | suffix meaning enzyme |
| Lipase | breaks down lipids |
| Myc/o | combining form that means fungus |
| Mycosis | Fungal conditioning |
| Fluoroscopy | shows motion of an internal body part, frequently used when testing the digestive tract |
| Ulcer | sore or lesion of the skin or mucous membrane, common in the GI tract |