Liver

• The liver lies on the right side of the abdominal cavity beneath the diaphragm.
• It is divided into four lobes of unequal size and shape.
  • right lobe
    • Occupies the right upper quadrant.
    • Right hepatic vein divides right lobe into anterior and posterior segments
  • left lobe
    • Much smaller and has a different blood supply and portal drainage from the right lobe.
    • Left hepatic vein divides left lobe into medial and lateral segments
  • caudate lobe
    • is functionally part of both right and left lobes because it receives its blood supply from both right and left hepatic arteries.
  • quadrate
    • Receives its blood supply form the left hepatic artery and is therefore functionally part of the left lobe.
• Middle hepatic vein divides right from left lobe of liver
• It is important to understand the complex blood flow through the liver. 

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Porta Hepatis

Ligaments

Applied Anatomy