Final answer:
Compression of the brainstem can cause the medulla oblongata to be wedged into the foramen magnum. One of the possible causes of this compression is inflammation of the meninges.
Step-by-step explanation:
Compression of the brainstem can cause the medulla oblongata to be wedged into the foramen magnum. The medulla oblongata is a part of the brainstem located at the base of the brain. It plays a crucial role in controlling various vital functions of the body such as breathing, heart rate, and blood pressure. When there is compression of the brainstem, it can lead to severe neurological symptoms and can be life-threatening.
One of the possible causes of compression of the brainstem is inflammation of the meninges. Meningitis, which is an inflammation of the meninges, can lead to increased intracranial pressure and compression of the brainstem. This can occur due to infections caused by bacteria or viruses.
Therefore, option 3) Compression of the brainstem is the correct answer.