Human heart is derived from

Options

A. Ectoderm
B. Mesoderm
C. Endoderm
D. Both (1) & (3)

Answer

To answer the question "Human heart is derived from," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Triploblastic Organisms**:
- Humans are classified as triploblastic organisms. This means that during embryonic development, they develop from three primary germ layers.

2. **Identifying the Germ Layers**:
- The three germ layers are:
- **Ectoderm**: The outermost layer, which gives rise to structures such as the nervous system and skin.
- **Mesoderm**: The middle layer, which is responsible for forming muscles, the circulatory system, and other organs.
- **Endoderm**: The innermost layer, which develops into the gastrointestinal tract and associated organs like the lungs.

3. **Specific Development of the Heart**:
- The human heart specifically develops from the mesoderm layer. This layer is crucial for the formation of various organs and systems in the body, including the heart.

4. **Conclusion**:
- Therefore, the human heart is derived from the mesoderm, making it mesodermal in origin.

### Final Answer:
The human heart is derived from the mesoderm.

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