# What are the bronchi?

It is called the bronchi. Gray's Anatomy (1918) describes it as the two main branches of the trachea.

## What it means

- The two main branches of the trachea.
- The right main bronchus is wider, shorter, and more vertical than the left.
- Each divides again and again inside the lung.

## Action steps

1. Enter the lungs at the hila.
2. The right bronchus supplies the right lung; the left the left lung.
3. Their walls contain rings of cartilage.

## Sources

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

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