What is the final drainage path for venous blood collected by the dural venous sinuses?

• A. Internal Jugular Veins
• B. External Jugular Veins
• C. Azygos Vein
• D. Superior Sagittal Sinus

Answer: (A)

Blood collected by the dural venous sinuses eventually leaves the skull through the internal jugular veins. The sinuses drain into the sigmoid sinuses, which travel to the jugular foramen and become the internal jugular vein. From there the blood continues down the neck toward the heart. External jugular veins handle superficial scalp and face drainage and typically empty into the subclavian or internal jugular veins, not the intracranial sinuses. The azygos vein operates in the thorax/abdomen, not the brain, and the superior sagittal sinus is a conduit within the brain’s venous system, not the final drainage.