# What is the tailbone called?

The tailbone is called the coccyx. Gray's Anatomy (1918) describes it as a small, triangular bone formed by the fusion of the last three to five vertebrae.

## What it means

- A small, triangular bone formed by the fusion of the last three to five vertebrae.
- The vestige of the tail in humans.
- Provides attachment for several pelvic muscles and ligaments.

## Action steps

1. At the very bottom of the vertebral column.
2. Just below the sacrum.
3. Between the buttocks.

## Sources

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

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