Epithelial tissue always has an exposed outer surface and an inner surface anchored to connective tissue by a thin, non cellular layer called :

Options

A. stratified layer
B. non-stratified layer
C. basement membrane
D. fibrocartilage

Explanation

**Step-by-Step Solution:**

1. **Understanding Epithelial Tissue**: Epithelial tissue is a type of tissue that forms the outer layer of organs and structures in the body. It serves as a protective barrier and is involved in absorption, secretion, and sensation.

2. **Identifying the Structure**: Epithelial tissue has two surfaces: an exposed outer surface that faces the external environment or body cavity, and an inner surface that is anchored to underlying tissues.

3. **Connection to Connective Tissue**: The inner surface of the epithelial tissue is connected to connective tissue. This connection is crucial for providing support and nourishment to the epithelial cells.

4. **Role of the Basement Membrane**: Between the epithelial tissue and the connective tissue, there is a thin, non-cellular layer known as the basement membrane. This membrane acts as a barrier and provides structural support, anchoring the epithelial cells to the connective tissue beneath.

5. **Conclusion**: Therefore, the thin, non-cellular layer that anchors the epithelial tissue to the connective tissue is called the **basement membrane**.

**Final Answer**: The correct answer is **basement membrane**.

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