Sigmoid sinus

Sigmoid sinus

Infobox Vein
Name = Sigmoid sinus
Latin = sulcus sigmoideus
GraySubject = 171
GrayPage = 657


Caption = Dural veins. ("Pars sigmoid" labeled at lower right.)


Caption2 =
DrainsFrom =
Source = transverse sinus | DrainsTo = internal jugular vein
Artery =
MeshName = Cranial+Sinuses
MeshNumber = A07.231.908.224
Dorlands = nine/000957014
DorlandsID = Sigmoid sinus | The sigmoid sinuses (left & right), within a human head, are 2 areas beneath the brain, which allow blood veins to span the area, from the center of the head downward. They drain from the transverse sinuses (under the back of the brain) to the internal jugular vein. "See diagram (at right)": labeled under the brain as "PARS SIGMOID." (for Latin: "sigmoideus").

Each sigmoid sinus begins beneath the temporal bone and follows a tortuous course to the jugular foramen, at which point the sinus becomes continuous with the internal jugular vein.

ee also

* Dural venous sinuses


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  • sigmoid sinus — noun an S shaped dural sinus on the temporal and occipital bones • Syn: ↑sinus sigmoideus • Hypernyms: ↑venous sinus, ↑sinus …   Useful english dictionary

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  • sigmoid sulcus — sulcus for sigmoid sinus s. sinus sigmoidei …   Medical dictionary

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