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| Subdural space |
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| Diagrammatic representation of a section across the top of the skull, showing the membranes of the brain, etc. ("Subdural cavity" visible at left.) |
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| 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 |
| Dorlands/Elsevier |
s_16/12746663 |
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. The arachnoid matter normally adheres to the dura mater due to cerebrospinal fluid within the subarachnoid space. 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.
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This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
