Spine anatomy MRI

This sagittal MRI study shows the primary contents of the vertebral canal. The medullary cone (L. conus medullaris) is the cone-shaped inferior end of the spinal cord, which typically ends at the L1–L2 level in adults. The dura mater, the external overing of the spinal cord (gray), is separated from the spinal cord by a fluid-filled space (black) and from the wall of the vertebral canal by fat (white) and thin-walled veins (not visible here).