What is NOT an epithelial membrane in the human body ?

Options

A. Mucous membrane
B. Serous membrane
C. Cutaneous membrane
D. Endocardium membrane

Answer

To determine which option is NOT an epithelial membrane in the human body, let's analyze each option step by step:

1. **Understanding Epithelial Membranes**: Epithelial membranes are composed of epithelial tissue attached to a layer of connective tissue. There are three main types of epithelial membranes: mucous membranes, serous membranes, and cutaneous membranes.

2. **Analyzing the Options**:
- **Mucous Membrane**: This is an epithelial membrane that protects the internal parts of the body exposed to air and is rich in mucous glands that keep the membranes moist.
- **Serous Membrane**: This is also an epithelial membrane that lines internal body cavities and organs such as the heart, lungs, and abdominal cavity. It is made up of mesothelium tissue.
- **Cutaneous Membrane**: This is the skin, which is a multilayered membrane composed of epithelial and connective tissues. It protects the body from external factors.
- **Endocardium Membrane**: This is the innermost layer of tissue that lines the heart chambers. It is considered a type of serous membrane.

3. **Identifying the Non-Epithelial Membrane**:
- The first three options (mucous, serous, and cutaneous membranes) are all types of epithelial membranes.
- The endocardium membrane, while it lines the heart chambers, is not classified as a typical epithelial membrane in the same way as the others. It is a type of serous membrane but does not fit the standard classification of epithelial membranes.

4. **Conclusion**: Therefore, the option that is NOT an epithelial membrane in the human body is the **endocardium membrane**.

### Final Answer:
The endocardium membrane is NOT an epithelial membrane in the human body.