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straight sinus


Definition: an unpaired dural venous sinus in the posterior part of the falx cerebri where it is attached to the tentorium cerebelli; it is formed anteriorly by the merging of the great cerebral vein with the inferior sagittal sinus and passes horizontally and posteriorly to the confluence of sinuses.

Synonym(s): sinus rectusTA, tentorial sinus

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.