Straight sinus

Straight sinus

Infobox Vein
Name = Straight sinus
Latin = sinus rectus
GraySubject = 171
GrayPage = 655


Caption = Dural veins (Straight sinus labeled as 'SIN. RECTUS' at center right.)


Caption2 = Dura mater and its processes exposed by removing part of the right half of the skull, and the brain. (Straight sinus visible as blue line at center left.)
DrainsFrom =
Source = inferior sagittal sinus, great cerebral vein
DrainsTo = confluence of sinuses
Artery =
MeshName = Cranial+Sinuses
MeshNumber = A07.231.908.224
DorlandsPre = s_12
DorlandsSuf = 12739157
The straight sinus (also known by the alternate anatomical term tentorial sinus), within the human head, is an area beneath the brain, which allows blood veins to span the area, from the center of the head towards the back. It drains from the inferior sagittal sinus (from the center of the brain) to the transverse sinuses (at the back of the head), then to the sigmoid sinuses below the brain. "See diagram (at right)": labeled in the brain as "SIN. RECTUS" (for Latin: "sinus rectus").

The "straight sinus" (tentorial sinus) is situated along the junction of the falx cerebri and the tentorium cerebelli.

It forms from the confluence of the inferior sagittal sinus and great cerebral vein (great vein of Galen). In cross-section it is triangular, contains a few transverse bands across its interior, and increases in size as it proceeds backward. It receives the superior cerebellar veins.

The terminal part of the straight sinus drains into the confluence of the sinuses.


=Additional

ee also

* Dural venous sinuses

References

*

External links

*


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  • Inferior sagittal sinus — Infobox Vein Name = Inferior sagittal sinus Latin = sinus sagittalis inferior GraySubject = 171 GrayPage = 655 Caption = Dural veins (Inferior sagittal sinus labeled as SIN. SAGITTALIS INF. at upper right.) Caption2 = Dura mater and its processes …   Wikipedia

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