Which sinuses are described as a pair located on the inside of the base of the skull running toward the ears?

Which sinuses are described as a pair located on the inside of the base of the skull running toward the ears?

• A. Transverse Sinuses
• B. Inferior Sagittal Sinuses
• C. Straight Sinus
• D. Superior Sagittal Sinuses

Answer: (A)

Dural venous sinuses have distinct paths, and the one that runs horizontally along the inner base of the skull toward the ears is the transverse sinus. These paired channels begin at the confluence of sinuses near the internal occipital protuberance and travel laterally across the posterior cranial fossa toward the temporal region, where they continue as the sigmoid sinuses that drain into the internal jugular veins. This lateral, sideways course differentiates them from the other sinuses, which run along midline paths within the falx cerebri or at the junctions of the falx and tentorium.

Dural venous sinuses have distinct paths, and the one that runs horizontally along the inner base of the skull toward the ears is the transverse sinus. These paired channels begin at the confluence of sinuses near the internal occipital protuberance and travel laterally across the posterior cranial fossa toward the temporal region, where they continue as the sigmoid sinuses that drain into the internal jugular veins. This lateral, sideways course differentiates them from the other sinuses, which run along midline paths within the falx cerebri or at the junctions of the falx and tentorium.