Transverse sinus

This video tutorial explores the transverse sinus, a dural venous sinus in the brain that drains venous blood from the brain and meninges into the internal jugular vein. The tutorial covers the anatomy and characteristics of dural venous sinuses, highlighting their valveless nature and bidirectional blood flow. It details the pathway of the transverse sinus, its connections, and the venous contributions it receives. The video concludes with a call to explore more interactive learning resources on Kenhub.

What is a unique feature of the dural venous sinuses that distinguishes them from other venous vessels?

• They are valveless, allowing bidirectional blood flow.

• They are located outside the cranial cavity.

• They have thick muscular walls.

• They contain valves to prevent backflow.

Where does the transverse sinus originate?

• In the frontal lobe

• At the confluence of sinuses

• At the base of the skull

• Near the jugular bulb

Which sinuses contribute to the confluence of sinuses that feed into the transverse sinus?

• Superior sagittal, straight, and occipital sinuses

• Cerebral, cerebellar, and spinal sinuses

• Inferior sagittal, cavernous, and petrosal sinuses

• Basilar, sigmoid, and jugular sinuses

Which veins provide additional venous contributions to the transverse sinus?

• Middle meningeal vein and basilar vein

• Inferior cerebral vein and inferior anastomotic vein of Labbe

• Superior cerebral vein and vein of Galen

• Cavernous sinus and petrosal sinus

Into which structure does the sigmoid sinus eventually drain?

• Internal jugular vein

• External jugular vein

• Superior vena cava

• Subclavian vein