Sep 12, 2016
Meninges are a triple-layer membrane that helps hold your brain in place.
The inside of your skull bones have many boney processes protruding out. The meninges surround the brain and provide a cushioning layer around it, and anchor to these processes. This allows the brain to be suspended inside the skull and not touch the top, sides, or bottom.
This setup is partly contributes to concussions. When the head experiences a large enough impact, the suspended brain crashes into the bone of the skull.
Meninges encase your brain and spinal cord to protect them.
Subarachnoid space - hold cerebrospinal fluid (a closed fluid system that insulates and cushions the brain and spinal cord). Doesn’t mix with blood or lymph system.
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