Trunk vessels (aorta, vena cava, abdominal branches)
Inferior pancreaticoduodenal arteries
Arteriae pancreaticoduodenales inferiores
- Origin
- First branch arising from the superior mesenteric artery
- Insertion
- Divides into anterior and posterior branches that anastomose with the superior pancreaticoduodenal branches of the gastroduodenal artery
- Function
- Supplies the pancreatic head and duodenal loop; forms vital celiac-to-SMA arterial collateral arcade
- Innervation
- Superior mesenteric plexus
- Movement & chain
- Arterial pulsatile flow
- Palpation
- Not palpated directly
- Clinical
- Pancreaticoduodenal arcade aneurysms develop secondary to increased collateral flow in celiac axis stenosis/MALS.
- Segmental innervation
- T8-T10 spinal levels
- In clinical practice
- Endovascular coil embolization of ruptured arcade aneurysms, monitoring collateral flow
- Region in the model
- Trunk vessels (aorta, vena cava, abdominal branches)