Confluence of sinuses

Vein: Confluence of sinuses

Dural veins. (Labeled with "confluens sinuum")

Sagittal section of the skull, showing the sinuses of the dura. (Labeled with "torcula herophili".)
Latin	confluens sinuum, torcula herophili
Gray's	subject #171 658
Source	superior sagittal sinus, straight sinus, occipital sinus
Drains to	transverse sinuses
MeSH	Cranial+Sinuses
Dorlands / Elsevier	c_52/12255035

The superior sagittal sinus, straight sinus, and occipital sinus connect at a series of channels that comprise the confluence of sinuses, which is found beneath the occipital protuberance of the skull. They drain blood into the right and left transverse sinuses.

An older, Latinate term for the confluence of sinuses is torcula herophili.

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Veins (emissary, jugular and others) and sinuses of head and neck (drainage patterns can vary)

Diploic/brain	cerebral: superior • middle • inferior • great • internal (basal, superior thalamostriate) cerebellar: superior • inferior To COS: superior sagittal • straight (inferior sagittal) • occipital To CS: sphenoparietal • intercavernous superior ophthalmic (ethmoidal, central retinal, nasofrontal) • inferior ophthalmic • vorticose veins To IJV: sigmoid: transverse (petrosquamous) • superior petrosal inferior petrosal (basilar plexus, internal auditory veins) - condylar

Other	common facial • facial (frontal, supraorbital, angular, superior labial, inferior labial, deep facial) • pterygoid plexus lingual (dorsal lingual, deep lingual, sublingual) • pharyngeal • thyroid (superior/superior laryngeal, middle)