The epithelium found in hollow organs (like bronchioles ) are originally ……….epithelium bearing fine brush - like structures on its free surface.

Options

A. columnar
B. glandular
C. squamous
D. compound

Answer

To solve the question regarding the type of epithelium found in hollow organs like bronchioles, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Identify the Structure**: The question specifies that we are looking for an epithelium that has fine brush-like structures on its free surface. These structures are typically cilia.

**Hint**: Look for terms like "cilia" or "brush-like structures" that indicate specialized epithelial cells.

2. **Consider the Function**: The epithelium in bronchioles plays a role in moving mucus and trapping foreign particles. This suggests that the epithelium must have a mechanism for movement, which is characteristic of ciliated epithelium.

**Hint**: Think about the functions of different types of epithelium and how they relate to their structure.

3. **Review Types of Epithelium**:
- **Columnar Epithelium**: Tall, column-like cells that can be ciliated. Found in respiratory tracts and reproductive organs.
- **Glandular Epithelium**: Specialized for secretion, not primarily involved in movement.
- **Squamous Epithelium**: Thin and flat, specialized for exchange, not for movement.
- **Compound Epithelium**: Multi-layered, found in areas subject to abrasion, not in hollow organs like bronchioles.

**Hint**: Eliminate options that do not match the characteristics described in the question.

4. **Select the Correct Type**: Given that the epithelium in bronchioles is ciliated and helps in moving mucus, the correct type of epithelium is **columnar epithelium**.

**Hint**: Focus on the specific characteristics of the epithelium types and their locations in the body.

### Final Answer:
The epithelium found in hollow organs like bronchioles is originally **columnar epithelium** bearing fine brush-like structures on its free surface.