Corpus: Transverse sinus

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from Latin: sinus - bay, transversus - across
English: lateral sinus

Definition[Bearbeiten]

The transverse sinus is an intradural venous blood vessel of the brain (sinus durae matris) located on both sides of the border of the posterior cranial fossa (fossa cranii posterior).

Anatomy and function[Bearbeiten]

The dural sheath of the transverse sinus is formed by the flat attachment of the tentorium cerebelli to the occipital bone. Within the bony cranial fossa, the transverse sinus forms the impression of the transverse sinus sulcus.

The transverse sinus drains the inferior and cerebellar cerebral veins and receives the inferior anastomotic vein (Labbé vein). It also drains the confluens sinuum in the area of the internal occipital protuberance. It drains the venous blood via the sigmoid sinus into the internal jugular vein.

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