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).
About Your Liver. The liver is the largest organ inside your body. It is located under your ribs on your right side. Your liver weighs about three pounds and is shaped like a football that is flat on one side.