Where are the transverse sinuses located?

• A. Inside the Base of the Skull Running Toward the Ears
• B. In the Posterior Fossa
• C. In the Frontal Region
• D. Surrounding the Pituitary Gland

Answer: (A)

Transverse sinuses are large venous channels that stay inside the skull and travel horizontally from the back of the head toward the ears. They run along the inner surfaces of the occipital bone and the temporal bones, following the tentorium cerebelli, starting at the confluence of sinuses near the internal occipital protuberance and draining into the sigmoid sinuses toward the jugular foramen. This path—inside the base of the skull and moving laterally toward the ears—best captures both their location and direction. They’re not in the frontal region and don’t surround the pituitary, so those options don’t fit. While they do lie in the posterior cranial region, the description of being inside the skull and running toward the ears gives the most precise orientation.