What is the function of the sagittal sinus?
What is the function of the sagittal sinus?
Function. The purpose of the superior sagittal sinus is to carry waste and fluids away from the brain as veins do throughout the rest of the body.
Where is the sagittal vein?
The superior sagittal sinus (also known as the superior longitudinal sinus), within the human head, is an unpaired area along the attached margin of the falx cerebri. It allows blood to drain from the lateral aspects of anterior cerebral hemispheres to the confluence of sinuses.
What is the transverse sinus?
The transverse sinus (lateral sinus) is a paired venous vessel that runs through the tentorium cerebelli. The function of the transverse sinus is to collect the blood from the veins of the cerebellum and inferior surface of the brain.
Where is the sagittal sinus in the brain?
The superior sagittal sinus is one of several endothelial-lined spaces in the brain known collectively as the dural venous sinuses. It lies within the superior convex margin of the falx cerebri which attaches to the internal surface of the calvaria (in the midline).
What is the sigmoid sinus a continuation of?
The sigmoid sinus is a continuation of the transverse sinus and becomes the sigmoid sinus where the tentorium cerebelli ends (Figs. 5.1–5.3).
What vein does the sigmoid sinus drain into?
internal jugular veins
The transverse sinuses emerge from the confluence and go on the form the sigmoid sinuses, which drain into the internal jugular veins as they leave the cranium via the jugular foramina.
What is the sagittal vein?
The superior sagittal sinus drains the bilateral cerebral hemispheres and serves as the common midline venous structure that receives blood from multiple draining vessels within the cortical hemispheres themselves.
Where is the transverse sinus in the brain?
occipital bone
The transverse sinuses (left and right lateral sinuses), within the human head, are two areas beneath the brain which allow blood to drain from the back of the head. They run laterally in a groove along the interior surface of the occipital bone.
What causes transverse sinus stenosis?
From my experience with hundreds of patients, one of the most common cause of venous sinus stenosis is enlargement of arachnoid granulations. The arachnoid granulations are valves that normally occur in the wall of the venous sinuses and facilitate from of CSF from the brain to the bloodstream.