Where Did the Dura Mater Come from?

摘要

The meninges provide a protective cover to the brain and the spinal cord and attach to the bony skull or the vertebral column, and also contain cerebrospinal fluid space. The dura mater is a two-layered membrane attached to the inner surface of the skull [ , ]. The outer (endosteal or periosteal) layer serves as the periosteum of the internal surface of the skull bone. The inner layer (meningeal or dura mater proper) is fused to the endosteal layer in most regions, and they are separated at the dural venous sinuses. The dural reflections of the 2 meningeal layers fold and invaginate into the cranial cavity by forming the falx cerebri and the tentorium cerebelli.