====== Dura mater ====== Dura mater or [[dura]], is a thick membrane that is the outermost of the three layers of the [[meninges]] that surround the [[brain]] and [[spinal cord]]. It is derived from [[mesoderm]]. The other two meningeal layers are the [[pia mater]] and the [[arachnoid mater]]. The dura surrounds the [[brain]] and the [[spinal cord]] and is responsible for keeping in the [[cerebrospinal fluid]]. The arterial blood supply to the dura mater is rich, complex and is derived from both the internal and external carotid systems. Endovascular management of a variety of intracranial diseases necessitates a thorough understanding of the dural arterial network ((Bhogal P, Makalanda HL, Brouwer PA, Gontu V, Rodesch G, Mercier P, Söderman M. Normal pio-dural arterial connections. Interv Neuroradiol. 2015 Oct 22. pii: 1591019915609137. [Epub ahead of print] Review. PubMed PMID: 26494407. )). see [[Cadaveric dura]]. see [[Spinal dura mater]]. ===== Duraplasty ===== see [[Duraplasty]].