Foramen of Magnum is present in

Options

A. Base of medulla
B. Base of skull
C. Apex of vertebral column
D. Base of brain

Answer

**Step-by-Step Solution:**

1. **Understanding the Foramen of Magnum**: The Foramen of Magnum is a large oval-shaped opening located in the occipital bone of the skull.

2. **Location Identification**: It is important to identify where this structure is situated. The Foramen of Magnum is found at the base of the skull.

3. **Function of the Foramen of Magnum**: This opening allows the passage of the spinal cord, which is an extension of the medulla oblongata, as it exits the cranial cavity.

4. **Associated Structures**: The Foramen of Magnum also transmits important structures, including the vertebral arteries, anterior and posterior spinal arteries, tectorial membranes, ligaments, and the accessory nerve.

5. **Conclusion**: Based on the above information, we can conclude that the Foramen of Magnum is present at the base of the skull.

**Final Answer**: The Foramen of Magnum is present in the base of the skull.

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