Ependymal cells are found in the

Options

A. ventricles of brain
B. central canal of spinal cord
C. retina of eye
D. both (1) and (2)

Answer

**Step-by-Step Solution:**

1. **Understanding Ependymal Cells**: Ependymal cells are a type of glial cell found in the central nervous system. They play a crucial role in supporting neurons and are involved in the production and circulation of cerebrospinal fluid (CSF).

2. **Location of Ependymal Cells**: Ependymal cells are primarily located in two specific areas:
- The **ventricles of the brain**: These are interconnected cavities filled with cerebrospinal fluid.
- The **central canal of the spinal cord**: This is a narrow channel that runs through the center of the spinal cord.

3. **Function of Ependymal Cells**: Ependymal cells line the ventricles and the central canal, forming an epithelial layer. They have cilia on their surface, which help in the movement of cerebrospinal fluid throughout the brain and spinal cord.

4. **Conclusion**: Based on the above information, ependymal cells are found in both the ventricles of the brain and the central canal of the spinal cord.

5. **Answer Selection**: Therefore, the correct answer to the question is that ependymal cells are found in both the ventricles of the brain and the central canal of the spinal cord.

**Final Answer**: Ependymal cells are found in the ventricles of the brain and the central canal of the spinal cord.

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