'''''Liver:'' ''' The liver has four lobes (left, median, right and caudate). The median, right and caudate lobes are subdivided in two sublobes. The rat has no gall bladder and the bile is not concentrated. Hepatocyte polyploidy and binucleated cells is common and increases with age | '''''Liver:'' ''' The liver has four lobes (left, median, right and caudate). The median, right and caudate lobes are subdivided in two sublobes. The rat has no gall bladder and the bile is not concentrated. Hepatocyte polyploidy and binucleated cells is common and increases with age |