Tags: Anatomical Structure.
For a discussion about the anesthetic procedure see Epidural.In the spine the epidural space (from Ancient Greek ἐπί on upon + dura mater also known as extradural space or peridural space) is an anatomic space that is the outermost part of the spinal canal. It is the space within the canal (formed by the surrounding vertebrae) lying outside the dura mater (which encloses the arachnoid mater subarachnoid space the cerebrospinal fluid and the spinal cord).
