Medical Dictionary

sinus of the dura mater

noun

medical Definition of sinus of the dura mater

:any of numerous venous channels (as the sagittal sinuses, straight sinus, and transverse sinuses) that are situated between the two layers of the dura mater, that have no valves, and that drain blood from the brain and the bones forming the cranium and empty it into the internal jugular vein called also dural sinus

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