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Left gastric artery

Artery

Field	Value
Name	Left gastric artery
Latin	arteria gastrica sinistra
Image	Gray532.png
Caption	The left gastric artery and other branches of the celiac artery (stomach in situ). Left gastric artery identified near lesser curvature.
Image2	Illu lymph chain08.jpg
Caption2	Left gastric artery is at #2 -- the upper of the two arrows.
BranchFrom	Celiac artery

In human anatomy, the left gastric artery arises from the celiac artery and runs along the superior portion of the lesser curvature of the stomach before anastomosing with the right gastric artery (which runs right to left). It also issues esophageal branches that supply lower esophagus and ascend through the esophageal hiatus to form anastomoses with the esophageal branches of thoracic part of aorta.

Anatomy

Origin

The LGA usually arises from (the superior aspect of) the coeliac trunk - sometimes as a terminal branch of a trifurcation, and more rarely as a side branch of the splenic artery or of common hepatic artery. Sometimes it originates directly from aorta or from arteria phrenica inferior.

Course

From the crus of diaphragm, the LGA arches obliquely anterior-ward and to the left to reach the left curvature of the stomach just inferior to the gastric cardia (thus erecting the gastropancreatic (peritoneal) fold).

Fate

Upon reaching the cardia, the LGA splits into two terminal branches - a ventral one and a dorsal one - which anastomose with corresponding terminal branches of the right gastric artery, together providing arterial supply to the lesser curvature of the stomach.

Branches

Besides its terminal ventral branch and dorsal branch, the LGA yields multiple side branches: the left lateral hepatic artery, posterior esophageal artery, anterior esophagocardiotuberous artery, branches to lymph nodes, and omental branches.

Clinical significance

In terms of disease, the left gastric artery may be involved in peptic ulcer disease: if an ulcer erodes through the stomach mucosa into a branch of the artery, this can cause massive blood loss into the stomach, which may result in such symptoms as hematemesis or melaena.

Additional images

File:Stomach blood supply.svg|Blood supply to the stomach: left and right gastric artery, left and right gastro-omental artery and short gastric artery. File:Gray533.png|The celiac artery and its branches; the stomach has been raised and the peritoneum removed. File:TIEU 0442.gif|Arteries and veins around the pancreas and spleen.

References

Lung, Kirsten. (2022). "Anatomy, Abdomen and Pelvis, Arteries". StatPearls Publishing.
"Artère gastrique gauche - Dictionnaire médical de l'Académie de Médecine".
Essential Clinical Anatomy. K.L. Moore & A.M. Agur. Lippincott, 2 ed. 2002. Page 150

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

arteries-of-the-abdomen stomach

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