dura, middle meningeal artery and superior sagittal sinus


     Clearly, there is an intimate relationship between CSF and the meninges so let's consider these tissues next. The outermost of the three layers is the dura - short for dura mater. It is a tough, fibrous layer, having the feeling and strength of canvas.To prepare this specimen, a large piece of dura was carefully pried away from the skull and left in place, covering the dorsal surface of the brain.