Occlusion of Aery of Adamkiewicz leads to infarction of which of the following structure?

Also called as Aeria radicularis Magna: supplies the anterior spinal aery, can arise from Subcostal, Posterior intercostal or lumbar aeries. Occlusion commonly occurs during surgery for thoracoabdominal aneurysms which leads to spinal cord infarction and paraplegia. ref - pubmed.com