What are bronchi ? Where are they present?

Explanation

### Step-by-Step Solution:

1. **Definition of Bronchi**:
- Bronchi are the passages or airways in the respiratory system that conduct air into the lungs. They are essential for transporting air from the trachea (windpipe) to the lungs.

2. **Structure of Bronchi**:
- The bronchi are divided into three main categories:
- **Primary Bronchi**: The first division of the bronchi, which branches from the trachea. There are two primary bronchi: the right bronchi and the left bronchi.
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