Skeletal tissue originated from which embryonic germinal layer :-

Options

A. Ectoderm
B. Mesoderm
C. Endoderm
D. All the above

Answer

**Step-by-Step Solution:**

1. **Identify the Germ Layers**: Understand that there are three primary embryonic germ layers: ectoderm, mesoderm, and endoderm.

2. **Define Each Germ Layer**:
- **Ectoderm**: The outermost layer, which gives rise to structures such as the epidermis of the skin, hair, nervous tissue, and certain glands.
- **Endoderm**: The innermost layer, which develops into the lining of the digestive tract and some organs like the liver and pancreas.
- **Mesoderm**: The middle layer, which is responsible for forming various structures including muscles, connective tissues, and skeletal tissues.

3. **Focus on Skeletal Tissue**: Recognize that skeletal tissue, which includes bones and cartilage, is classified as connective tissue.

4. **Determine the Origin of Skeletal Tissue**: Since skeletal tissue is a type of connective tissue, it originates from the mesoderm.

5. **Conclude the Answer**: Therefore, the skeletal tissue originated from the mesoderm, which is the second embryonic germ layer.

**Final Answer**: Skeletal tissue originated from the mesoderm.

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