Your liver is a large, vascular, glandular organ which plays an important role in digestion (such as the production of bile). It converts carbohydrates to glycogen, which it then stores, and it elaborates many important substances, especially of the blood. It is located in the upper right portion of your abdominal cavity immediately below your diaphragm.
Your kidneys are a pair of abdominal organs which filter impurities from the blood and excrete them as urine. They also help to maintain acidity and other important chemical characteristics in the blood at a constant level.