Which sequence connects the superior sagittal sinus to the internal jugular vein?

Which sequence connects the superior sagittal sinus to the internal jugular vein?

• A. Transverse sinus, then sigmoid sinus
• B. Cavernous sinus, then sphenoparietal sinus
• C. Superior sagittal directly to IJ vein
• D. Inferior petrosal sinus to internal jugular

Answer: (A)

The main concept here is how the brain’s venous blood drains through the dural venous sinuses before returning to the heart via the internal jugular vein. From the superior sagittal sinus, blood generally flows posteriorly into the confluence of sinuses, then continues through the transverse sinuses, down into the sigmoid sinuses, and finally exits as the internal jugular vein. The sequence involving the transverse sinus followed by the sigmoid sinus captures the essential route from the superior sagittal sinus to the internal jugular vein. The other options describe pathways that don’t reflect this main drainage route, such as going through the cavernous system or claiming a direct jump from the superior sagittal sinus to the IJ vein.

The main concept here is how the brain’s venous blood drains through the dural venous sinuses before returning to the heart via the internal jugular vein. From the superior sagittal sinus, blood generally flows posteriorly into the confluence of sinuses, then continues through the transverse sinuses, down into the sigmoid sinuses, and finally exits as the internal jugular vein. The sequence involving the transverse sinus followed by the sigmoid sinus captures the essential route from the superior sagittal sinus to the internal jugular vein. The other options describe pathways that don’t reflect this main drainage route, such as going through the cavernous system or claiming a direct jump from the superior sagittal sinus to the IJ vein.