From which embryonic structure develops the vertebral column

Options

A. Neural canal
B. Archenteron
C. Notochord
D. Blastocoel

Answer

To determine the embryonic structure from which the vertebral column develops, we need to analyze the options provided.

### Step-by-Step Solution:

1. **Understanding the Vertebral Column**: The vertebral column, commonly known as the backbone, is a crucial part of the skeletal system in vertebrates. It provides support and protection for the spinal cord.

2. **Reviewing the Options**:
- **Neural Canal**: This is the hollow space within the neural tube that eventually forms the central nervous system (CNS). It does not contribute to the vertebral column.
- **Arcanteron**: This term refers to a primitive gut structure in the embryo. It is not involved in the development of the vertebral column.
- **Notochord**: This is a rod-like structure derived from the mesoderm. The notochord serves as a precursor to the vertebral column and plays a critical role in the development of the spine.
- **Blastocoel**: This is a fluid-filled cavity in the early stages of embryonic development. It does not contribute to the formation of the vertebral column.

3. **Identifying the Correct Answer**: Among the options, the notochord is the only structure that directly contributes to the formation of the vertebral column. It serves as a template around which the vertebrae develop.

4. **Conclusion**: The vertebral column develops from the **notochord**.

### Final Answer:
The vertebral column develops from the **notochord**.

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