Functional anatomy and blood supply of the liver


      The liver is the second-largest organ in the human body. Traditionally, the anatomy of the liver has been described on the basis of its external appearance/gross anatomy. However, with the increase in surgical procedures, for example resection and transplant, the need for a more functional description of the liver based on its vascular and biliary architecture evolved. Different models of functional anatomy of the liver have been described in the literature in the past, but Couinaud’s model of functional anatomy of the liver is the most popular. The liver has dual vascular supply, with most of its supply coming from the portal vein and the remainder through the hepatic artery. In this article, we outline the functional anatomy of the liver along with its blood supply.


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      Further reading

        • Gray H.
        Hepatic segmentation.
        in: Gray H. Gray’s anatomy. 39th edn. Churchill Livingstone, London2006: 1797-1798
        • Moore K.L.
        • Dalley A.F.
        Hepatic segmentation and blood vessels of the liver.
        in: Moore K.L. Dalley A.F. Clinically oriented anatomy. Lippincott, Williams & Wilkins, Philidelphia2006: 293-295
        • Smithuis R.
        Liver: segmental anatomy. The radiology assistant.
        (Also available at:) (accessed February 2009)