Spinal meninges [Neurosurgery Wiki]

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====== Spinal meninges ======

The [[spinal cord]] and [[brain]] are encased within three layers of tissue called the [[meninge]]s. The spinal [[meninge]]s specifically enclose the spinal cord and stretch from the [[brainstem]] down to the filum terminale. The layers of the [[meninge]]s are, from deep to superficial, the [[pia mater]], the [[arachnoid mater]], and the [[dura mater]]. The names of these layers give information on their qualities. [[Pia]], which is Latin for “loving” and mater, which is Latin for “mother,” make up the pia mater, or “loving mother” which is directly attached to the [[spinal cord]] and inseparable. The arachnoid mater contains a web of fiber beneath it in the [[subarachnoid space]], and the dura mater or “hard mother” is the tough outer layer of the meninges. The principal function of the spinal meninges is to protect and support the spinal cord
((Sehgal I, M Das J. Anatomy, Back, Spinal Meninges. 2019 Sep 20. StatPearls
[Internet]. Treasure Island (FL): StatPearls Publishing; 2019 Jan-. Available
from http://www.ncbi.nlm.nih.gov/books/NBK547755/
PubMed PMID: 31613535.
)).
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The spinal [[meninge]]s are contained within the [[spinal canal]] and encase the [[spinal cord]], [[spinal nerve root]]s and the [[cauda equina]].

They are composed of three layers (outer to inner).

[[Spinal arachnoid mater]].

[[Spinal dura mater]].

[[Spinal pia mater]].

====Related pathology====
[[Intradural extramedullary spinal tumor]].

[[Meningeal melanocytoma]].

[[Spinal dural arteriovenous fistula]].

[[Spinal epidural abscess]].

[[Spinal meningeal cyst]].

[[Tarlov cyst]].