superior pancreaticoduodenal artery

arteria pancreaticoduodenalis superior

The superior pancreaticoduodenal artery is an artery that supplies blood to the duodenum and pancreas. It is a branch of the gastroduodenal artery, which comes from the common hepatic artery of the celiac trunk. The common hepatic itself becomes the proper hepatic after giving off the gastroduodenal artery and goes on to supply the right and left lobes of the liver. The term superior distinguishes the superior pancreaticoduodenal artery from the inferior pancreaticoduodenal artery, which a branch of the superior mesenteric artery. These arteries, together with the pancreatic branches of the splenic artery, form connections or anastomoses with one another, allowing blood to perfuse the pancreas and duodenum through multiple channels. The artery splits into two branches: the anterior superior pancreaticoduodenal artery supplies the anterior margins of the duodenum and pancreas the posterior superior pancreaticoduodenal artery supplies the posterior margins of these organs [WP,unvetted].

Tipo Vessel
Estructura principal pancreaticoduodenal artery
Nombre latino arteria pancreaticoduodenalis superior
FMA ID 70437

Subestructuras

anterior superior pancreaticoduodenal artery Vessel posterior superior pancreaticoduodenal artery Vessel

Preguntas frecuentes

What is the superior pancreaticoduodenal artery?
The superior pancreaticoduodenal artery is a branch of the gastroduodenal artery (itself a branch of the hepatic artery from the celiac trunk) that supplies blood to the duodenum and the head of the pancreas.
What is the origin of the superior pancreaticoduodenal artery?
The superior pancreaticoduodenal artery arises from the gastroduodenal artery, which is a branch of the common hepatic artery arising from the celiac trunk. The gastroduodenal artery divides into the superior pancreaticoduodenal artery and the right gastroepiploic artery.
What does the superior pancreaticoduodenal artery supply?
The superior pancreaticoduodenal artery supplies the descending (second) and horizontal (third) parts of the duodenum and the head of the pancreas, along with the bile duct and surrounding connective tissue.
How does the superior pancreaticoduodenal artery differ from the inferior pancreaticoduodenal artery?
The superior pancreaticoduodenal artery derives its blood from the celiac axis (via gastroduodenal artery), while the inferior pancreaticoduodenal artery arises from the superior mesenteric artery (SMA). The two systems anastomose, providing collateral flow between the celiac and mesenteric circulations.
Why is the anastomosis between superior and inferior pancreaticoduodenal arteries clinically important?
The anastomosis between the superior pancreaticoduodenal artery (celiac territory) and the inferior pancreaticoduodenal artery (SMA territory) provides important collateral circulation. In celiac artery stenosis, blood can flow retrograde through this anastomosis from the SMA.

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Educational Disclaimer

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.