Inferior sagittal sinus

This tutorial explores the inferior sagittal sinus, a dural venous sinus involved in draining deoxygenated blood from the brain. It highlights the brain's high oxygen demand and its blood supply systems, the internal carotid and vertebrobasilar systems. The venous drainage system, including the dural venous sinuses and their connection to the internal jugular vein, is explained. The anatomy and location of the sagittal sinuses, particularly the inferior sagittal sinus, are detailed. The course and tributaries of the inferior sagittal sinus are also covered. The video concludes by promoting Kenhub as a resource for further anatomy learning.

Which two systems supply oxygenated blood to the brain?

• Renal and lymphatic systems

• Coronary and hepatic systems

• Pulmonary and systemic systems

• Internal carotid and vertebrobasilar systems

How does the venous drainage of the brain differ from its arterial supply?

• It bypasses the venous system entirely

• It drains into the dural venous sinuses

• It drains into the lymphatic system

• It follows the same path as the arteries

Where is the inferior sagittal sinus located in relation to the superior sagittal sinus?

• Deep to the superior sagittal sinus

• Superficial to the superior sagittal sinus

• Anterior to the superior sagittal sinus

• Lateral to the superior sagittal sinus

What is the shape of the inferior sagittal sinus?

• Convex

• Concave

• Flat

• Cylindrical

Into which sinus does the inferior sagittal sinus terminate?

• Cavernous sinus

• Sigmoid sinus

• Straight sinus

• Transverse sinus