Right gastric artery

Last revised by Dr Daniel J Bell on 01 Jul 2021

The right gastric artery (RGA) is a non-hepatic branch of the hepatic arteries that supplies the lesser curvature of the stomach.

Gross Anatomy

Course

The right gastric artery usually branches from one of the hepatic arteries (common, proper or left hepatic). It is the most common non-hepatic branch of the proper hepatic artery or its distal branches 4. It runs along the lesser curvature of the stomach between the two layers of the lesser omentum (hepatogastric ligament) and anastomoses end on with the left gastric artery.

Branches

The right gastric artery supplies the lesser curvature of the stomach. Its branches come off at right angles, in contrast to branches from vagal nerve trunks, which come off obliquely.

Relations

Veins of the same name accompany the arteries.

Variant anatomy

The right gastric artery has variable origins 1-3:

The left and right gastric artery can be double as they run parallel along the lesser curvature of the stomach.

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Cases and figures

  • Figure 1: celiac artery (Gray's illustration)
    Drag here to reorder.
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