# What is the appendix?

The appendix is called the vermiform appendix. Gray's Anatomy (1918) describes it as a narrow, worm-shaped tube.

## What it means

- A narrow, worm-shaped tube.
- About 8-10 cm long in the adult.
- Its function in humans is uncertain; it contains lymphoid tissue.

## Action steps

1. Attached to the lower end of the cecum.
2. In the lower right of the abdomen.
3. Its base is fairly constant; its tip can lie in several positions.

## Sources

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

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