dural venous sinus
Anatomical term referring to the venous channels located between the layers of the dura mater in the brain.
The dural venous sinuses collect venous blood from the brain and connect to the internal jugular vein.
Compound of 硬膜 (こうまく, 'dura mater'), 静脈 (じょうみゃく, 'vein'), and 洞 (どう, 'sinus/cavity').