Dura mater

Dura materThe Dura mater cranialis, cranial dura, is the part of the dura that encloses the brain iside the skull. It is part of the meninges.

The cranial dura continues into the spinal dura at the foramen magnum. Isinde the skull there is no epidural space like in the spinal canal. The two dural layers have grown together.

The outer layer (Stratum periostale) is connected to the periosteum of the inner skull.

The inner layer (Stratum meningeale) lies on top of the Arachnoid. It forms duplicatures (double layers), like the falx cerebri and the tentorium cerebelli that sperate brain structures.

Between the two layers there are the meningeal blood vessels (medial meningeal artery) and the brain sinus.