Columnar Epithelium with microvilli or Brush Border is present in :-

Options

A. intestines
B. Stomach
C. Appendix
D. Pharynx

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the presence of columnar epithelium with microvilli (also known as brush border) in specific organs.

2. **Identifying Epithelial Tissue Types**: Epithelial tissues are classified into various types, including squamous, cuboidal, and columnar epithelium. Some of these types can have specialized structures like microvilli.

3. **Microvilli Function**: Microvilli are small projections that increase the surface area of cells, which is particularly important for absorption processes in certain organs.

4. **Analyzing the Options**:
- **Intestines**: The intestines, specifically the small intestine, are known to have columnar epithelium with microvilli. This structure increases the surface area for nutrient absorption.
- **Stomach**: The stomach has simple columnar epithelium, but it does not have a brush border.
- **Appendix**: The appendix also contains simple columnar epithelium but lacks microvilli.
- **Pharynx**: The pharynx is lined with stratified squamous epithelium, not columnar epithelium.

5. **Conclusion**: Based on the analysis, the only organ among the options provided that contains columnar epithelium with microvilli is the intestines.

**Final Answer**: The correct answer is the intestines.

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