# What are the meninges?

The the meninges is called the meninges. Gray's Anatomy (1918) describes it as three connective-tissue membranes that surround the brain and spinal cord.

## What it means

- Three connective-tissue membranes that surround the brain and spinal cord.
- Named (from outside in) dura mater, arachnoid mater, and pia mater.
- Protect the central nervous system and enclose the cerebrospinal fluid.

## Action steps

1. Between the bone of the skull or vertebral canal and the brain or spinal cord.
2. Continuous around the entire central nervous system.
3. The cerebrospinal fluid lies between the arachnoid and pia.

## Sources

- [Gray's Anatomy of the Human Body (1918)](https://www.bartleby.com/107/)

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