Trachea divides into bronchi at the level of ___________ thoracic vertebra?5th3rd4th9th
Question
Trachea divides into bronchi at the level of ___________ thoracic vertebra?
- 5th
- 3rd
- 4th
- 9th
Solution
1. Break Down the Problem
To determine the level at which the trachea divides into the bronchi, we need to identify the corresponding thoracic vertebra.
2. Relevant Concepts
The trachea bifurcates into the right and left main bronchi at approximately the same level as the carina, which is located at the level of the thoracic vertebrae.
3. Analysis and Detail
The typical level for the bifurcation of the trachea into bronchi is between the T4 and T5 thoracic vertebrae.
4. Verify and Summarize
Given the options: 5th, 3rd, 4th, 9th, the closest to the typical anatomical landmark is the 4th thoracic vertebra (T4). While T5 is also commonly associated with this division, T4 is generally recognized as the level at the carina.
Final Answer
The trachea divides into bronchi at the level of the 4th thoracic vertebra (T4).
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