Inferior petrosal sinus

Inferior petrosal sinus

Infobox Vein
Name = Inferior petrosal sinus
Latin = sinus petrosus inferior
GraySubject = 171
GrayPage = 659


Caption = Dural veins


Caption2 = The sinuses at the base of the skull. (Inferior petrosal sinus visible at center, between superior petrosal sinus and basilar plexus.)
DrainsFrom =
Source = cavernous sinus
DrainsTo = internal jugular vein
Artery =
MeshName = Cranial+Sinuses
MeshNumber = A07.231.908.224
DorlandsPre = s_12
DorlandsSuf = 12739065
The inferior petrosal 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 downward. It drains from the cavernous sinus (beneath the brain) to the sigmoid sinuses above the internal jugular vein. "See diagram (at right)": labeled under the brain as "S. PETROS. INF." (for Latin: "sinus petrosus inferior").

The "inferior petrosal sinus" is situated in the inferior petrosal sulcus, formed by the junction of the petrous part of the temporal with the basilar part of the occipital.

It begins in the postero-inferior part of the cavernous sinus and, passing through the anterior part of the jugular foramen, ends in the superior bulb of the internal jugular vein.

The inferior petrosal sinus receives the internal auditory veins and also veins from the medulla oblongata, pons, and under surface of the cerebellum.


=Additional

ee also

* Dural venous sinuses

References

*


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  • Superior petrosal sinus — Infobox Vein Name = Superior petrosal sinus Latin = sinus petrosus superior GraySubject = 171 GrayPage = 659 Caption = Dural veins Caption2 = The sinuses at the base of the skull. (Superior petrosal sinus visible at center left.) DrainsFrom =… …   Wikipedia

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  • sinus petrosus inferior — [TA] inferior petrosal sinus: one of the sinuses of the dura mater, arising from the cavernous sinus and running along the line of the petrooccipital synchondrosis to the superior bulb of the internal jugular vein …   Medical dictionary

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