Trachea divides at the level of :

Options

A. `7^(th)` Cervical vertebrae
B. `5^(th)` Lumbar vertebrae
C. `5^(th)` Thoracic vertebrae
D. `7^(th)` Thoracic vertebrae

Answer

To determine the level at which the trachea divides, we can follow these steps:

### Step 1: Understand the Structure of the Trachea
The trachea, also known as the windpipe, is a crucial part of the respiratory system. It connects the larynx to the bronchi and is supported by cartilaginous rings that prevent it from collapsing.

**Hint:** Remember that the trachea is part of the airway leading to the lungs and is structured to remain open.

### Step 2: Identify the Anatomical Landmarks
The trachea runs down the neck and into the thoracic cavity. It is important to know the vertebral levels associated with the trachea and its bifurcation.

**Hint:** Familiarize yourself with the cervical and thoracic vertebrae and their respective numbers.

### Step 3: Locate the Division of the Trachea
The trachea divides into the right and left bronchi at a specific vertebral level. This division is clinically significant as it marks the transition from the trachea to the bronchi.

**Hint:** The division of the trachea occurs at the level of the thoracic vertebrae, not the cervical or lumbar vertebrae.

### Step 4: Confirm the Correct Vertebral Level
The trachea typically bifurcates at the level of the 5th thoracic vertebra (T5). This is a well-established anatomical fact.

**Hint:** Remember that the thoracic vertebrae are numbered from T1 to T12, and the 5th thoracic vertebra is the key landmark for tracheal division.

### Conclusion
Based on the anatomical understanding, the trachea divides at the level of the 5th thoracic vertebra.

**Final Answer:** The trachea divides at the level of the 5th thoracic vertebra (Option C).

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