Table of Contents
What is the medical term for above the dura?
Epidural means outside the dura. An accumulation of blood outside the dura is an epidural hematoma.
What does dura mater mean in medical terms?
(DER-uh MAY-ter) The tough outer layer of tissue that covers and protects the brain and spinal cord and is closest to the skull. The dura mater is one of the three layers that form the meninges.
Is this blood accumulation above the dura mater or below the dura mater?
A subdural hematoma (sub-DOO-ral heme-uh-TOE-muh) is a collection of blood that forms underneath the dura mater. The blood comes from small veins that are torn and bleed.
What is an epidural bleed?
An epidural hematoma (EDH) occurs when blood accumulates between the skull and the dura mater, the thick membrane covering the brain. They typically occur when a skull fracture tears an underlying blood vessel. EDHs are about half as common as a subdural hematomas and usually occur in young adults.
What is the medical term for herniation of the brain?
A brain herniation, or cerebral herniation, occurs when brain tissue, blood, and cerebrospinal fluid (CSF) shifts from their normal position inside the skull.
What is the medical term for herniation of the meninges?
Mening/o/cele: herniation of meninges.
What is the function of dura mater?
The dura mater is a sac that envelops the arachnoid and has been modified to serve several functions. The dura mater surrounds and supports the large venous channels (dural sinuses) carrying blood from the brain toward the heart. The dura mater is partitioned into several septa, which support the brain.
What are the two layers of the dura mater?
The dura mater is composed of two layers: the periosteal/endosteal layer and the meningeal layer. The dural venous sinuses are between these two layers.
What are the 3 dural folds?
The dura folds to form septa that create the falx cerebri, tentorium cerebelli, falx cerebelli, and diaphragma sellae.
How do you know if you have epidural hematoma?
Headache (severe) Head injury or trauma followed by loss of consciousness, a period of alertness, then rapid deterioration back to unconsciousness. Nausea or vomiting. Weakness in part of the body, usually on the opposite side from the side with the enlarged pupil.
Is epidural hematoma life threatening?
In some cases, a person can develop internal bleeding around the brain called an epidural hematoma. If left untreated, an epidural hematoma can be life-threatening.