Which of the folowing cells lie on a basement membrane ?

Options

A. epithelial
B. cardiac muscles
C. neuroglia cells
D. fibrocytes

Answer

**Step-by-Step Solution:**

1. **Understanding Basement Membrane:**
- The basement membrane is a thin, fibrous layer of extracellular matrix that provides support and anchorage for various types of cells. It is typically found beneath epithelial and endothelial cells and surrounds muscle and fat cells.

2. **Analyzing the Options:**
- We need to determine which of the given cell types lie on a basement membrane.

3. **Option 1: Epithelial Cells**
- Epithelial cells are known to lie on a basement membrane. This is a defining characteristic of epithelial tissue, as it provides structural support and facilitates the attachment of epithelial cells.

4. **Option 2: Cardiac Muscle Cells**
- Cardiac muscle cells do not lie on a basement membrane. Instead, they are part of the muscle tissue that makes up the heart walls and are not associated with a basement membrane in the same way epithelial cells are.

5. **Option 3: Neuroglia Cells**
- Neuroglia cells, which support and protect neurons, do not lie on a basement membrane. They are found in the nervous system and do not have the same structural relationship with a basement membrane as epithelial cells do.

6. **Option 4: Fibrocytes**
- Fibrocytes are cells found in connective tissue and are involved in the repair of tissues. They do not lie on a basement membrane but are found within the connective tissue matrix.

7. **Conclusion:**
- After analyzing all options, the only cells that lie on a basement membrane are epithelial cells. Therefore, the correct answer is **Option 1: Epithelial cells.**

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