anatomical terminology epidural space

The epidural space is the narrow space between the dura mater and the periosteum and ligamentum flavum on the inner surface of the spinal canal. pass. It does not communicate with the lower brain, and it is slightly negative pressure. In clinical practice, lumbar puncture can be performed to inject anesthetic into this space to anesthetize the spinal nerve root.

The epidural space is upward and does not pass into the brain, and it is in a slightly negative pressure state, and the spinal nerve roots pass through it. In clinical epidural anesthesia, drugs are injected into the epidural space to block the conduction of spinal nerves.

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