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The size of the liver varies due to its role in metabolism. In carnivores the liver weighs about 3-5% of body weight, in omnivores 2-3% and in herbivores 1.5%. the liver is much heavier in young animals rather than older animals as it atropies with age.
The size of the liver varies due to its role in metabolism. In carnivores the liver weighs about 3-5% of body weight, in omnivores 2-3% and in herbivores 1.5%. the liver is much heavier in young animals rather than older animals as it atropies with age.
==Histology==
==Histology==
*
[[Image:Lobule Histology.jpg|thumb|right|150px|Liver Lobule Histology - Copyright RVC 2008]]
*Connective tissue capsule around each lobule
*The larger liver cells are called lobules
**Each lobule contains an opening for the central vein and contains portal areas
**Lobules composed of liver cords called hepatocytes
**Sinusoids present between hepatocytes
*Portal area present in lobules
**