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connections from fourth ventricle to subarachnoid space (allow CSF to flow into this space)
Path of CSF
choroid plexus, ventricles (first and second to third to fourth), apertures, subarachnoid space, arachnoid villi, dural sinuses, bloodstream
Dural sinuses pathway to venous system
Cavernous and superior sagittal and inferior sagittal, transverse, sigmoid
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