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Right gastric artery

The right gastric artery is a small abdominal vessel that arises from the proper hepatic artery. It runs along the lesser curvature of the stomach giving off several small branches that supply its anterior and posterior aspects.

The artery terminates by anastomosing with the left gastric artery around the angular incisure of the stomach.

This article will discuss the anatomy and function of the right gastric artery.

Key facts about the right gastric artery
Origin Hepatic artery proper
Branches Unnamed collateral branches for the stomach
Supply Lesser curvature, anterior and posterior sides of the stomach 
Contents
  1. Course
  2. Branches and supply
  3. Anatomical variations
  4. Sources
+ Show all

Course

The right gastric artery usually originates from the proper hepatic artery, after the origin of the gastroduodenal artery. It is situated in the lesser omentum, accompanied by the same-named vein.

The artery runs parallel to the lesser curvature of the stomach where it gives rise to several small branches.

After it passes over the angular incisure, it terminates, directly anastomosing with the left gastric artery

Branches and supply

On its course along the lesser curvature of the stomach, it gives off multiple small branches. These branches provide the blood supply for the lesser curvature of the stomach and its anterior and posterior walls.

Anatomical variations

The right gastric artery has variable sites of origins. Most common sites include: 

  • Proper hepatic artery (40-65%)
  • Common hepatic artery (40%)
  • Left hepatic artery (15-25%)
  • Gastroduodenal artery (5-25%)

In some cases, if the right gastric artery forms indirect anastomoses with the left gastric artery; their branches form an anastomotic network in the submucosal layer of the stomach

Learn more about the arteries of the stomach, liver and spleen with our articles, videos, labeled diagrams and quizzes.

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