confluence of the sinuses

confluence of the sinuses

[kon′flo̅o̅·əns]

Etymology: 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 matter, draining blood from the section and an inner bulging granular section.

confluence of the sinuses

The dilated posterior end of the superior sagittal sinus in the skull. This dilation joins one of the transverse sinuses (usually the right), which drains the blood from the superior sagittal sinus toward the internal jugular vein. The other transverse sinus and the occipital sinus also connect to the confluence of the sinuses.)

See also: sinus