Which one of the following types of cell is involved in making of the inner walls of large blood vessels ?

Options

A. Cuboidal epithelium
B. Columnar epithelium
C. quamous epithelium
D. Stratified epithelium

Answer

To solve the question "Which one of the following types of cell is involved in making of the inner walls of large blood vessels?", we will analyze each option provided and determine which type of epithelial tissue is responsible for forming the inner walls of large blood vessels.

### Step-by-Step Solution:

1. **Understand the Question**: The question asks about the type of cells that make up the inner walls of large blood vessels. We need to identify the correct type of epithelial tissue from the options given.

2. **Analyze the Options**:
- **Option 1: Cuboidal Epithelium**
- Cuboidal epithelial cells are cube-shaped and are primarily found in glandular ducts and the kidney. They do not line the inner walls of blood vessels.
- **Conclusion**: This option is incorrect.

- **Option 2: Columnar Epithelium**
- Columnar epithelial cells are elongated and column-shaped. They are typically found in the stomach and intestines.
- **Conclusion**: This option is also incorrect for the context of blood vessels.

- **Option 3: Squamous Epithelium**
- Squamous epithelium consists of flat, scale-like cells. This type of epithelium is indeed found lining the inner walls of large blood vessels, such as arteries and veins.
- **Conclusion**: This option is correct.

- **Option 4: Stratified Epithelium**
- Stratified epithelium consists of multiple layers of cells and is found in areas subject to abrasion, such as the male urethra.
- **Conclusion**: This option is incorrect.

3. **Final Answer**: Based on the analysis, the type of cell involved in making the inner walls of large blood vessels is **Squamous Epithelium**.