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Herniation: The Brain Under Pressure

Herniation: The Brain Under Pressure
Herniation: The Brain Under Pressure

Bleeding or swelling in the brain can cause pressure that forces the brain downward in the skull. The result may be a herniation, in which brain tissue is forced through a small natural opening in the relatively rigid sheets of tissue that separate the brain into right and left compartments and into upper and lower compartments. (These dividers are extensions of the outer layer of tissue covering the brain, the dura mater.) Herniation compresses brain tissue and thus damages it.