# What is the corpus callosum?

The corpus callosum is called the corpus callosum. Gray's Anatomy (1918) describes it as a broad band of nerve fibers.

## What it means

- A broad band of nerve fibers.
- The largest connection between the two cerebral hemispheres.
- Allows the two sides of the brain to communicate.

## Action steps

1. Deep within the brain, above the thalami.
2. Curves from front to back across the midline.
3. Made of about 200 million nerve fibers.

## Sources

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

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