Poisons are then destroyed by the liver. It makes excess sugars into fat. There are two kidneys, they lie at on each side of the spine at the back of the abdomen. They filter the blood to keep it clean, also removing water and waste for disposal as urine. The stomach is an organ in the upper abdomen.
Food is passed to the stomach from the oesophagus.
Strong muscles mash up the food, while acids break up the food, prior to passing into the intestines for digestion. The pancreas is a gland approx. 12 cm long joined to the small intestine. Juices from the pancreas help digest the food. It also produces insulin, which controls the level of sugar in the blood.