Adjacent epithelial cells are joined by :

Options

A. oxysomes
B. desmonemes
C. desmosomes
D. plasmodesmata

Answer

To answer the question "Adjacent epithelial cells are joined by:", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Epithelial Cells**: Epithelial cells are tightly packed cells that form the lining of surfaces and cavities in the body. They are known for their close arrangement and connection to one another.

2. **Identifying Cell Junctions**: Adjacent epithelial cells are connected through specialized structures that facilitate adhesion and communication. These structures are known as cell junctions.

3. **Types of Cell Junctions**: There are several types of cell junctions, including tight junctions, adherens junctions, gap junctions, and desmosomes. Each type serves a specific function in maintaining the integrity and communication of epithelial tissues.

4. **Focusing on Desmosomes**: Among these junctions, desmosomes (also referred to as macula adherens) are particularly important for providing mechanical strength and stability to epithelial tissues. They are specialized structures that anchor adjacent cells together, allowing them to withstand stress and strain.

5. **Conclusion**: Based on the above points, the correct answer to the question is that adjacent epithelial cells are joined by **desmosomes**.

### Final Answer:
Adjacent epithelial cells are joined by **desmosomes**.

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