Ventricles of brain, central canal of spinal cord, bronchi and lining of stomach & intestine have  

Options

A. columnar epithelium and cuboidal
B. flagellated columnar & ciliated cuboidal
C. squamous & columnar
D. ciliated columnar & non ciliated columnar Connective Tissue

Answer

To solve the question about the types of epithelial tissues lining the ventricles of the brain, the central canal of the spinal cord, bronchi, and the lining of the stomach and intestine, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structures**: The question lists four structures:
- Ventricles of the brain
- Central canal of the spinal cord
- Bronchi
- Lining of the stomach and intestine

2. **Understand the Function of Each Structure**:
- **Ventricles of the Brain**: These are hollow spaces in the brain that contain cerebrospinal fluid (CSF).
- **Central Canal of the Spinal Cord**: This canal also contains CSF and runs through the spinal cord.
- **Bronchi**: These are air passages that lead from the trachea to the lungs, involved in the respiratory system.
- **Stomach and Intestine**: These are parts of the digestive system, involved in digestion and absorption of nutrients.

3. **Determine the Type of Epithelium**:
- **Ventricles of the Brain and Central Canal of the Spinal Cord**: These structures are lined with **ciliated columnar epithelium**. The cilia help in the movement of CSF.
- **Bronchi**: The bronchi are lined with **ciliated columnar epithelium** to help trap and move particles out of the respiratory tract.
- **Lining of Stomach and Intestine**: The stomach and intestines are lined with **non-ciliated columnar epithelium** (also known as simple columnar epithelium) which is specialized for absorption and secretion.

4. **Match the Options**: Now, we look at the provided options:
- Columnar epithelium and cuboidal
- Ciliated columnar and non-ciliated columnar
- Squamous and columnar
- Ciliated columnar and connective tissue

From our analysis, the best match is **ciliated columnar and non-ciliated columnar** epithelium.

5. **Conclusion**: Therefore, the correct answer is **ciliated columnar and non-ciliated columnar epithelium**.

### Final Answer:
The ventricles of the brain, central canal of the spinal cord, bronchi, and lining of the stomach and intestine have **ciliated columnar and non-ciliated columnar epithelium**.

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