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epidural hematoma and p. 532
CSF is a clear, watery liquid which is pumped around the spinal cord and brain, cushioning them from impact and bathing them in nutrients.
The outer membrane, the dura mater consists of two layers.
The external layer of the dura mater adheres to the inner surface of the skull.
An epidural hematoma is a collection of blood above the dural mater, usually due to a head trauma. When blood accumulates in this space, it can result in raised intracranial pressure, damaging delicate nerve cells.
Epidural hematomas are most commonly caused by head injuries, such as those sustained in car accidents or falls. They can also be associated with childbirth (in newborns), cancer, or certain medical procedures. Symptoms vary depending on the size and location of the hematoma, but may include a headache, nausea and vomiting, loss of consciousness, seizures, or paralysis.
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