The liver is divided into two lobes by the middle hepatic vein: the right lobe of liver and the left lobe of liver. The right lobe of liver is larger than the left lobe of liver.
The right lobe liver has four sections. It is divided into the anterior right lobe and posterior right lobe by the right hepatic vein. It is also divided into the upper right lobe and lower right lobe by the portal vein.
Each of these sections contains branches of the hepatic veins, portal veins, hepatic arteries, and bile ducts. If one of these sections is damaged, the remaining sections of the right lobe of liver continue to work and the person usually doesn't have any negative effects. If the entire right lobe of liver is damaged or diseased, a liver transplant may be necessary.