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


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • sigmoid sinus — n a sinus on each side of the brain that is a continuation of the transverse sinus on the same side, follows an S shaped course to the jugular foramen, and empties into the internal jugular vein * * * sinus sigmoideus [TA] either of two sinuses… …   Medical dictionary

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

  • Groove for sigmoid sinus — Infobox Bone Name = PAGENAME Latin = sulcus sinus sigmoidei ossis parietalis GraySubject = GrayPage = Caption = Base of the skull. Upper surface. (Groove for sigmoid sinus not labeled, but Posterior cranial fossa is the bottommost of the three… …   Wikipedia

  • sigmoid groove — groove for sigmoid sinus sulcus sinus sigmoidei …   Medical dictionary

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

  • sinus transversus durae matris — [TA] transverse sinus of dura mater: either of two large sinuses of the dura mater that begin in a variable fashion at the confluence of the sinuses near the internal occipital protuberance. Each follows the attached margin of the tentorium… …   Medical dictionary

  • sinus transversus — noun a paired dural sinus; terminates in the sigmoid sinus • Syn: ↑transverse sinus • Hypernyms: ↑venous sinus, ↑sinus …   Useful english dictionary

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

  • Sigmoid colon — Front of abdomen, showing surface markings for liver, stomach, and great intestine. Latin colon sigmoideum Gray s …   Wikipedia

  • Sinus (anatomy) — Sinus is Latin for bay , pocket , curve , or bosom . In anatomy, the term is used in various contexts. A sinus is a sack or cavity in any organ or tissue, or an abnormal cavity or passage caused by the destruction of tissue. In common usage,… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”