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Mesothelium is : -...

Mesothelium is : -

A

Lining of coelom which originated from mesoderm

B

Lining of coelom which originated from ectoderm

C

Lining of heart which originated from Endoderm

D

Lining of heart which originated from Mesoderms

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Mesothelium**: Mesothelium is a type of tissue that is composed of simple squamous epithelial cells. It forms a membrane that lines various body cavities. 2. **Identifying the Origin**: Mesothelium originates from the mesoderm, which is one of the three primary germ layers in the early embryo (the others being ectoderm and endoderm). 3. **Locations of Mesothelium**: Mesothelium lines several body cavities, including the peritoneum (abdominal cavity) and pericardium (heart cavity). It is important to note that it provides a protective layer around internal organs. 4. **Differentiating Types of Mesothelium**: There are two types of mesothelium based on their location: - **Visceral Mesothelium**: This covers the organs within the cavities. - **Parietal Mesothelium**: This lines the walls of the cavities. 5. **Evaluating the Options**: - Option 1 states that mesothelium is the lining of the lung which originated from the mesoderm. This is correct. - Option 2 states it originated from the ectoderm, which is incorrect. - Option 3 states it is the lining of the heart from the endoderm, which is incorrect. - Option 4 states it is the lining of the heart from the mesoderm, which is also incorrect. 6. **Conclusion**: Based on the above analysis, the correct answer is that mesothelium is the lining of the lung which originated from the mesoderm. **Final Answer**: Mesothelium is the lining of the lung which originated from the mesoderm (Option 1). ---
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