Subdural space
Diagrammatic representation of a section across the top of the skull, showing the membranes of the brain, etc. ("Subdural cavity" visible at left.)
Diagrammatic transverse section of the medulla spinalis and its membranes. (Subdural cavity labeled at bottom and top right.)
Latin	spatium subdurale, cavum subdurale
Gray's	subject #193 875

The subdural space (or subdural cavity) is an artificial space created by the separation of the arachnoid mater from the dura mater as the result of trauma, pathologic process, or the absence of cerebrospinal fluid as seen in a cadaver. In the cadaver, due to the absence of cerebrospinal fluid, the arachnoid mater falls away from the dura mater. It may also be the site of trauma, such as a subdural hematoma, causing abnormal separation of dura and arachnoid mater. Hence, the subdural space is referred to as "potential" or "artificial" space.

[edit] See also

• Epidural space
• Subarachnoid space
• Meninges
• Subdural hematoma

[edit] External links

• subdural+space at eMedicine Dictionary
• Haines D, Harkey H, al-Mefty O (1993). "The "subdural" space: a new look at an outdated concept". Neurosurgery 32 (1): 111–20. PMID 8421539. 
• MeSH Subdural+space

This neuroscience article is a stub. You can help Wikipedia by expanding it. v • d • e

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v • d • e Anatomy: meninges of the brain and medulla spinalis (TA A14.1.01, GA 9.749/9.872) Layers Dura mater Falx cerebri · Tentorium cerebelli · Falx cerebelli · Diaphragma sellae · Trigeminal cave Arachnoid mater Arachnoid granulation Subarachnoid cisterns: Cisterna magna · Pontine cistern · Interpeduncular cistern · Chiasmatic · Lateral cerebral fossa · Of great cerebral vein Pia mater Denticulate ligaments Tela chorioidea (Tela chorioidea of third ventricle, Tela chorioidea of fourth ventricle) · Choroid plexus Combined Filum terminale · Leptomeninges Spaces Epidural space · Subdural space · Subarachnoid space (Cerebrospinal fluid)