Straight sinus

The straight sinus (also known as tentorial sinus, Latin: sinus rectus) is an unpaired dural venous sinus that lies in the junction between the falx cerebri and tentorium cerebelli. This sinus extends from the mentioned junction posteroinferiorly and enters the confluence of sinuses. The main tributaries of the straight sinus are the great cerebral vein and the superior cerebellar veins.