Last month, researchers from the University of Virginia reported the identification of lymphatic vessels in the central nervous system. They demonstrated that the lymphatic system extends into the dura mater, the thickest and outer-most of the three meningeal membranes that envelope the brain and spinal cord.  These vessels run parallel to the major veins and arteries, and split to send branches deep into the brain’s crevices. The researchers believe that they could be linked to the glymphatic system, and may be the second stage of the disposal mechanism, which would transport ...