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[[Image:meninges.jpg|thumb|right|150px|Diagram of the meninges, SEER Cancer INstitute, WikiMedia Commons]]
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[[Image:meninges.jpg|thumb|right|150px|Diagram of the meninges, 1.Skin 2.Periosteum 3.Bone 4.Dura mater 5.Arachnoid 6.Pia mater. SEER Cancer Institute, WikiMedia Commons]]
 
* The CNS is surrounded by several layers of tissue.
 
* The CNS is surrounded by several layers of tissue.
 
*# Bone layer with periosteum
 
*# Bone layer with periosteum
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