confluence of the sinuses /kon″flo̅o̅·əns/ [L, confluere, to flow together] , the wide union of the superior sagittal, the straight, and the occipital sinuses with the two large transverse sinuses of the dura mater. The right transverse sinus usually receives most of the blood from the superior sagittal sinus; the left transverse sinus receives the blood from the straight sinus. The confluence is one of six posterior superior sinuses of the dura mater, draining blood from the section and an inner bulging granular section.
