by Autonomous University of Barcelona Image of a human cerebral artery (above) and a mouse cerebral artery (below) obtained using Raman microspectroscopy. The sphingosine-1-phosphate, located mainly in the arachnoid membrane, can be seen in pink. Credit: Autonomous University of Barcelona The arachnoid is one of the three meninges, or brain membranes, and is responsible for mechanically...
