Meninges

MeningesThe cranial Dura mater is the part of the hard meninx (Dura mater), covering the brain within the skull. It belongs to the meninges.The cranial Dura mater forms the continuation of the spinal Dura mater above the Foramen magnum. It consists of two layers resp. leaves that are grown together, so that there is no physiologic epidural space, in contrast to the spinal canal.

The outer layer (Stratum periostale) is solidly grown together with the periost of the cranial cavity.

On the inside to the inner layer (Stratum meningeale) the arachnoid membrane (Arachnoidea) is lying close. It forms duplicates, which form the cerebral Falx and the cerebellar Tentorium that septate the brain.

Between the two layers, there are the meningeal blood vessels (e.g. medial meningeal artery), and the cerebral sinuses.