Arachnoid granulation | |
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Details | |
Identifiers | |
Latin | granulationes arachnoideae |
TA98 | A14.1.01.205 |
TA2 | 5389 |
FMA | 77760 |
Anatomical terminology |
Arachnoid granulations (also arachnoid villi, and pacchionian granulations or bodies) are small outpouchings of the arachnoid mater and subarachnoid space into the dural venous sinuses of the brain. The granulations are thought to mediate the draining of cerebrospinal fluid (CSF) from the subarachnoid space into the venous system.
The largest and most numerous granulations lie along the superior sagittal sinus; they are however present along other dural sinuses as well.
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