Blood supply

  • Celiac artery
  • Superior mesenteric artery
  • Inferior mesenteric artery

Blood vessels form arcades -- collateral and dual blood supply -- in case of ischemia -- red infarct. Can arise due to arterial or (rarely) venous occlusion.

  • Mucosal
  • Mural
  • Transmural -- Most often due to a severe acute obstruction

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