Superior petrosal sinuses

Superior petrosal sinus
Dural veins
The sinuses at the base of the skull. (Superior petrosal sinus visible at center left.)
Details
Source	cavernous sinus
Drains to	sigmoid sinus
Identifiers
Latin	sinus petrosus superior
MeSH	A07.231.908.224
TA	A12.3.05.115
FMA	50771
Anatomical terminology []

The superior petrosal sinus is a venous structure located beneath the brain. It receives blood from the cavernous sinus and passes backward and laterally to drain into the transverse sinus.

The sinus runs in the attached margin of the tentorium cerebelli, in a groove in the petrous part of the temporal bone formed by the sinus itself - the superior petrosal sulcus.

The sinus receives some cerebellar and inferior cerebral veins, and veins from the tympanic cavity.

Left temporal bone. Inner surface.

Base of the skull. Upper surface.

Sagittal section of the skull, showing the sinuses of the dura.

Tentorium cerebelli from above.

Human brain dura mater (reflections)

Superior petrosal sinus