An anteriorly convex curve is seen in which region of the vertebral column ?

Options

A. Thoracic
B. Lumbar
C. Sacral
D. Both (A) and ( C )

Answer

To solve the question regarding which region of the vertebral column exhibits an anteriorly convex curve, we can analyze the characteristics of the different curves in the vertebral column.

### Step-by-Step Solution:

1. **Understanding the Curves of the Vertebral Column**:
- The vertebral column has several curves that can be classified into primary and secondary curves.
- Primary curves are those that are present at birth, while secondary curves develop later.

2. **Identifying the Regions**:
- The vertebral column consists of several regions: cervical, thoracic, lumbar, sacral, and coccygeal.
- Each of these regions has a specific curvature:
- **Cervical Region**: Convex anteriorly (secondary curve).
- **Thoracic Region**: Convex posteriorly (primary curve).
- **Lumbar Region**: Convex anteriorly (secondary curve).
- **Sacral Region**: Convex posteriorly (primary curve).

3. **Evaluating the Options**:
- **Option A: Thoracic** - This region has a posterior convex curve, so it is incorrect.
- **Option B: Lumbar** - This region has an anterior convex curve, making it a potential correct answer.
- **Option C: Sacral** - Similar to the thoracic region, this region has a posterior convex curve, so it is incorrect.
- **Option D: Both A and C** - Since both A and C are incorrect, this option is also incorrect.

4. **Conclusion**:
- The only region that exhibits an anteriorly convex curve is the **Lumbar region**.
- Therefore, the correct answer is **Option B: Lumbar**.

### Final Answer:
The anteriorly convex curve is seen in the **Lumbar region** of the vertebral column.