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superior pancreaticoduodenal artery

arteria pancreaticoduodenalis superior

Blood reaches the duodenum and pancreas from above through the superior pancreaticoduodenal artery, a branch of the gastroduodenal artery, which itself arises from the common hepatic artery of the celiac trunk. The qualifier superior distinguishes it from the inferior pancreaticoduodenal artery, a branch of the superior mesenteric artery; together with the pancreatic branches of the splenic artery these vessels anastomose freely, so the pancreas and duodenum are perfused through multiple channels rather than by a single end-artery. The vessel divides into two named branches, the anterior superior pancreaticoduodenal artery, which supplies the anterior margins of the duodenum and pancreas, and the posterior superior pancreaticoduodenal artery, which supplies their posterior margins.

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].

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प्रकार Vessel
मूल संरचना pancreaticoduodenal artery
लैटिन नाम arteria pancreaticoduodenalis superior
FMA ID 70437

Frequently Asked Questions

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.

References

  1. Foundational Model of Anatomy — FMA:70437 Reference anatomy ontology (University of Washington)
  2. UBERON — UBERON:0002070 Cross-species anatomy ontology (EMBL-EBI Ontology Lookup Service)
  3. Wikidata — Q707443 Structured knowledge base cross-reference
  4. Wikipedia — superior pancreaticoduodenal artery Encyclopedia article (verified cross-reference)

चिकित्सा अस्वीकरण

यह सामग्री केवल शैक्षिक और सूचनात्मक उद्देश्यों के लिए है। इसे पेशेवर चिकित्सा सलाह, निदान या उपचार के विकल्प के रूप में नहीं माना जाना चाहिए। किसी चिकित्सा स्थिति के बारे में आपके किसी भी प्रश्न के लिए हमेशा अपने चिकित्सक या अन्य योग्य स्वास्थ्य प्रदाता से सलाह लें। इस वेबसाइट पर पढ़ी गई किसी बात के कारण कभी भी पेशेवर चिकित्सा सलाह को नजरअंदाज न करें या इसे लेने में देरी न करें।

Educational Disclaimer

This content is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical decisions.

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