Transverse sinus
Transverse Sinus
The Transverse Sinus (pronounced: trans-verse sigh-nus) is a part of the dural venous sinuses system in the human brain.
Etymology
The term "Transverse Sinus" is derived from Latin. "Transversus" means "lying across" and "sinus" refers to a hollow or cavity.
Definition
The Transverse Sinus is a paired structure, with each sinus running laterally along the occipital bone's inner surface, within the tentorium cerebelli. It begins near the internal occipital protuberance and continues to the sigmoid sinus, which drains into the internal jugular vein.
Function
The primary function of the Transverse Sinus is to drain blood from the posterior part of the brain towards the heart. It collects blood from the superior sagittal sinus and straight sinus, and drains into the sigmoid sinus.
Related Terms
- Dural venous sinuses: A system of venous channels found between layers of dura mater in the brain.
- Tentorium cerebelli: An extension of the dura mater that separates the cerebellum from the inferior portion of the occipital lobes.
- Internal occipital protuberance: A prominent projection of the occipital bone at the back of the skull.
- Sigmoid sinus: A dural venous sinus that continues from the transverse sinus and drains into the internal jugular vein.
- Internal jugular vein: A major blood vessel that drains blood from the brain, face, and neck.
- Superior sagittal sinus: A dural venous sinus that drains blood from the lateral aspects of anterior cerebral hemispheres to the confluence of sinuses.
- Straight sinus: A dural venous sinus that drains blood from the deep center of the brain to the confluence of sinuses.
External links
- Medical encyclopedia article on Transverse sinus
- Wikipedia's article - Transverse sinus
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