Epithelial tissue which lines the spinal cord is known as

Options

A. Endothelium
B. Endocardium
C. Ependymal cells
D. Mesothelium

Answer

To determine the epithelial tissue that lines the spinal cord, we need to analyze the options provided and understand the functions and locations of each type of tissue.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for the specific type of epithelial tissue that lines the spinal cord.

2. **Analyze the Options**:
- **Endothelium**: This is a type of simple squamous epithelium that lines blood vessels. It is not related to the spinal cord.
- **Endocardium**: This is the innermost layer of the heart. It is not associated with the spinal cord.
- **Epidermal Cells**: These cells form the outer layer of the skin and provide protection. However, they are not the correct answer for the spinal cord.
- **Mesothelium**: This is a type of epithelium that lines body cavities and covers organs. It is not related to the spinal cord.

3. **Identify the Correct Answer**: The epithelial tissue that lines the spinal cord is actually not one of the options provided. The spinal cord is covered by a protective layer called the **meninges**, which consists of three layers: dura mater, arachnoid mater, and pia mater. The pia mater is the closest layer to the spinal cord and is made up of a thin layer of cells.

4. **Conclusion**: The correct answer to the question is that the epithelial tissue lining the spinal cord is known as **pia mater**, which is part of the meninges.