![An illustration of the membranes that enclose the brain and spinal cord. The meninges include the periosteal and meningeal dura mater, the arachnoid mater and the pia mater. Arachnoid granulations protrude into An illustration of the membranes that enclose the brain and spinal cord. The meninges include the periosteal and meningeal dura mater, the arachnoid mater and the pia mater. Arachnoid granulations protrude into](https://c8.alamy.com/comp/G1560N/an-illustration-of-the-membranes-that-enclose-the-brain-and-spinal-G1560N.jpg)
An illustration of the membranes that enclose the brain and spinal cord. The meninges include the periosteal and meningeal dura mater, the arachnoid mater and the pia mater. Arachnoid granulations protrude into
![Meninges Layers, Function & Anatomy | Dura Mater, Arachnoid Mater & Pia Mater - Video & Lesson Transcript | Study.com Meninges Layers, Function & Anatomy | Dura Mater, Arachnoid Mater & Pia Mater - Video & Lesson Transcript | Study.com](https://study.com/cimages/multimages/16/skull_and_meninges2967251472779182983.jpg)
Meninges Layers, Function & Anatomy | Dura Mater, Arachnoid Mater & Pia Mater - Video & Lesson Transcript | Study.com
![Cunningham's Text-book of anatomy. Anatomy. THE AKACHNOIDEA. 671 Cavum Subarachnoideale.—The interval between the arachnoidea and the pia mater receives the name of the subarachnoid space. It contains the cerebro-spinal fluid, and Cunningham's Text-book of anatomy. Anatomy. THE AKACHNOIDEA. 671 Cavum Subarachnoideale.—The interval between the arachnoidea and the pia mater receives the name of the subarachnoid space. It contains the cerebro-spinal fluid, and](https://c8.alamy.com/comp/PFYAX4/cunninghams-text-book-of-anatomy-anatomy-the-akachnoidea-671-cavum-subarachnoidealethe-interval-between-the-arachnoidea-and-the-pia-mater-receives-the-name-of-the-subarachnoid-space-it-contains-the-cerebro-spinal-fluid-and-communicates-freely-through-certain-well-defined-apertures-with-the-ventricular-cavities-in-the-interior-of-the-brain-aperturse-ventriculi-quarti-within-the-cranium-the-subarachnoid-space-is-broken-up-by-a-mesh-work-of-fine-filaments-and-trabeculse-which-connects-the-two-bounding-membranes-viz-the-arachnoidea-and-the-pia-mater-in-the-most-intimate-manner-PFYAX4.jpg)
Cunningham's Text-book of anatomy. Anatomy. THE AKACHNOIDEA. 671 Cavum Subarachnoideale.—The interval between the arachnoidea and the pia mater receives the name of the subarachnoid space. It contains the cerebro-spinal fluid, and
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