pancreaticoduodenal arterial arcades

pan·cre·at·i·co·du·o·de·nal ar·te·ri·al ar·cades

anastomoses between the anterior and posterior pancreaticoduodenal arteries (from the gastroduodenal artery) and the anterior and posterior inferior pancreaticoduodenal arteries (from the superior mesenteric artery) on the anterior and posterior aspects of the head of the pancreas and the duodenum, supplying both structures.
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