The tentorial sinus is a particular structure located in the skull of humans. This sinus is a continuation of the straight sinus and helps to drain blood from the brain. There are various synonyms used to refer to the tentorial sinus, including sinuso tentorialis, sinus tentoriellus, and sinus tectorius. In some instances, the term may also be referred to as the transverse sinus in medical literature. Understanding these synonym terms for the tentorial sinus is significant for medical professionals who work in neurology, radiology, or neurological surgery. The correct understanding of these terms helps achieve clear communication during patient management and diagnosis procedures.