Left hepatic artery

The left hepatic artery (LHA) is formed when the proper hepatic artery (PHA) bifurcates. The hepatic arteries provide 25% of the blood supply and 50% of the oxygen supply to the liver.

Gross anatomy

The PHA bifurcates into the left and right hepatic arteries at or before reaching the porta hepatis. These are end arteries and supply the left and the right halves of the liver respectively. The LHA runs vertically towards the umbilical fissure and supplies segments I, II and III. It usually gives off a middle hepatic artery branch that runs towards the right side of the umbilical fissure that supplies segments IVa and IVb 2

Within the liver, the LHA divides into:

  • medial segmental branch
  • lateral segmental branch

Variant anatomy

Anatomy: Abdominopelvic

Anatomy: Abdominopelvic

Article information

rID: 46046
Section: Anatomy
Synonyms or Alternate Spellings:

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Cases and figures

  • Figure 1: LHA anatomic variation (diagram)
    Drag here to reorder.
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