The thick, whitish cord of nerve tissue that extends from the medulla oblongata down through the spinal column and from which the spinal nerves branch out to various parts of the body.
VertAlign®, EaseWay®, BreezeWay® and ComfAlign® are registered trademarks of The Bremer Group Company. VertAlign® System protected under U.S. Patent No. 5,718,670 ComfAlign® protected under U.S. Patent No. 6,702,770