In which of the following cilia form the brush-border and thus ciliated epithelium is present

Options

A. Fallopian tubes and urethra
B. Eustachain tube and stomach lining
C. Bronchioles and fallopian tubes
D. Bile duct and oesophagus

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the presence of ciliated epithelium and brush-border cilia in specific anatomical structures. We need to identify which pair of structures contains ciliated epithelium.

2. **Identifying Ciliated Epithelium**: Ciliated epithelium is a type of epithelial tissue that has cilia on its surface. These cilia help in moving substances across the epithelial surface. It is commonly found in the respiratory tract and the female reproductive system.

3. **Analyzing the Options**:
- **Option A**: Fallopian tube and urethra
- **Option B**: Eustachian tube and stomach lining
- **Option C**: Bronchioles and fallopian tube
- **Option D**: Bile duct and esophagus

4. **Evaluating Each Option**:
- **Option A**: The Fallopian tube does have ciliated epithelium, but the urethra does not have ciliated epithelium.
- **Option B**: The Eustachian tube has ciliated epithelium, but the stomach lining does not.
- **Option C**: Both bronchioles and the fallopian tube have ciliated epithelium.
- **Option D**: The bile duct does not have ciliated epithelium, and neither does the esophagus.

5. **Conclusion**: The correct answer is **Option C: Bronchioles and Fallopian tube**, as both structures contain ciliated epithelium.

**Final Answer**: Bronchioles and Fallopian tube.

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