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This is called a tonsillar hernation, where the cerebellum is pushed through the foramen magnum. The extra brain trying to pass through the foramen magnum can cause compression of the medulla, which has serious complications (e.g. stop breathing.)
This may be due to a space occupying lesion somewhere else in the brain, or in the cerebellum itself. As the brain cannot expand outwards (due to the hard skull) it expands down (and across where possible).
Examples of space occupying lesions include haemorrhage, oedema and tumours.
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May cause medulla oblongata to be wedged into foramen magnum by pressur of blood?
cerebrovascular accident
What may cause the medulla oblongata to be wedged into the foramen magnum by pressure of blood?
That can be from anything that increases the pressure in the brain such as swelling, bleeding or masses and is called herniation. It can be from a birth defect known as a Chiari malformation.
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What actors and actresses appeared in A Wedged Tale - 2010?
The cast of A Wedged Tale - 2010 includes: Simon Cherriman
What does a solid wedged bond mean in skeletal formulas?
It means that the bond is pointing above the plane.
How is wedged used in a sentence?
I am having a wedge of pie
What was the wedged shaped system of writing developed in mesopotamia?
cuneiform
What is the totem of the aboriginal wonnarua tribe?
wedged talil eagle
Where is a distributor for blazer 95?
Its at the rear of the engine and a pain to work on where its wedged in.
What is a writing system which involves wedged-shaped signs known as?
cuneiform
What is the name of the wedged shaped writing form developed by the sumerians?
Cuneiform.
