Proctitis is an inflammation of the anus and the lining of the rectum, affecting only the last 6 inches of the rectum.
The liver lies on the right side of the abdominal cavity beneath the diaphragm. Blood is carried to the liver via two large vessels called the hepatic artery and the portal vein. The heptic artery carries oxygen-rich blood from the aorta (a major vessel in the heart).
What System Does Liver Belong To? The liver belongs to the digestive system. What is the liver's function? The function of the liver is digesting, it does the next level of processing food. Where the liver is located? Your liver is directly under the diaphragm and located in the upper right side of your abdomen. It is protected by your rib cage.