In this tutorial, we will learn the neuroanatomy of spinal arterial supply. Key terms/structures: anterior spinal artery, posterior spinal arteries, vertebral arteries, basilar artery, posterior inferior cerebellar arteries, subclavian artery, spinal segmental branches of the vertebral arteries, ascending cervical artery (from the thyrocervical trunk) and the deep cervical artery (from the costocervical trunk), posterior intercostal arteries, lumbar arteries, internal iliac artery, lateral sacral arteries, dorsospinal artery, radicular arteries (proper) -- anterior and posterior, radiculomedullary arteries, radiculopial arteries, pial network, artery of Adamkiewicz, centrifugal system, sulcal arteries, centripetal system, vasocoronal perforating arteries.