CLAUS LUNAU / SCIENCE PHOTO LIBRARY CLAUS LUNAU / SCIENCE PHOTO LIBRARY
Brain meninges. Anatomical computer illustration of a section through a person's brain and skull, showing the different layers. From outside in: skin; skull; meninges - dura mater, arachnoid mater and pia mater; and brain tissue. The meninges are the three membranes that line and protect the central nervous system (CNS) - the spinal cord and brain.
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