Which dural venous sinus is located at the top of the cerebrum in the falx cerebri between the two cerebral hemispheres?

• A. Inferior Sagittal Sinus
• B. Transverse Sinus
• C. Sigmoid Sinus
• D. Superior Sagittal Sinus

Answer: (D)

The main idea here is the location of the superior sagittal sinus. It runs along the superior edge of the falx cerebri, right at the top between the two cerebral hemispheres. This sinus collects venous blood from the surface of the brain and from the meninges, and it also handles CSF drainage via arachnoid granulations that protrude into it. It travels from near the frontal area toward the internal occipital region and drains into the confluence of sinuses, continuing later to the transverse sinuses.

Other sinuses sit along different borders or paths: the inferior sagittal sinus runs along the lower edge of the falx cerebri, not at the top; the transverse sinus runs laterally at the edge of the tentorium; and the sigmoid sinus is the continuation that winds down toward the jugular foramen. The description of a sinus at the top of the cerebrum within the falx cerebri between the hemispheres fits the superior sagittal sinus precisely.