Trachea divies into right and left

Options

A. Secondary bronchi
B. Tertiary bronchi
C. Bronchioles
D. Primary bronchi

Answer

To answer the question "Trachea divides into right and left," we need to identify the structures that the trachea divides into.

### Step-by-Step Solution:

1. **Understanding the Trachea**: The trachea, commonly known as the windpipe, is a tube that connects the larynx (voice box) to the lungs. It is composed of C-shaped cartilage rings that prevent it from collapsing during breathing.

2. **Division of the Trachea**: The trachea bifurcates (divides) into two main branches. These branches are known as the primary bronchi. Specifically, it divides into the right primary bronchus and the left primary bronchus.

3. **Further Branching**: Each primary bronchus then further divides into secondary bronchi, which lead into the lungs. The secondary bronchi continue to branch into tertiary bronchi and then into smaller bronchioles.

4. **Conclusion**: Therefore, the correct answer to the question is that the trachea divides into the right and left **primary bronchi**.

### Final Answer:
The trachea divides into right and left **primary bronchi**.

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