Citation, DOI & article data
The extradural (epidural) space is a potential space between the cranial bones and the endosteal layer of the dura mater, which is otherwise adherent to the cranial bone.
The extradural space is a potential space inside the cranial vault and is not normally appreciable unless there is an underlying pathology 1.
This is in contrast to the epidural space of the spinal cord which contains epidural fat, lymphatics, blood vessels, and nerve roots 1, 2. The two spaces are not continuous.
Meningeal arteries exist within the cranial extradural space. These include branches of the middle meningeal artery 1. These vessels may be damaged in trauma and can lead to a collection of blood known as an extradural hematoma.
- 1. Schulte E. Head and Neuroanatomy. Thieme Georg Verlag. ISBN:3131421010. Read it at Google Books - Find it at Amazon
- 2. Harold Ellis, The anatomy of the epidural space, Anaesthesia & Intensive Care Medicine, Volume 7, Issue 11, November 2006, Pages 402-404
- 3. Calfee DP, Wispelwey B. Brain Abscess, Subdural Empyema, and Intracranial Epidural Abscess. Curr Infect Dis Rep.1 (2): 166-171.