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Inferior petrosal sinus

Vein channel in the skull

Summary

Vein channel in the skull

Field	Value
Name	Inferior petrosal sinus
Latin	sinus petrosus inferior
Image	Gray488_blue.gif
Caption	Dural veins
Image2	Gray570.png
Caption2	The sinuses at the base of the skull. (Inferior petrosal sinus visible at center, between superior petrosal sinus and basilar plexus.)
Source	Cavernous sinus
DrainsTo	Internal jugular vein

The inferior petrosal sinuses are two small sinuses situated on the inferior border of the petrous part of the temporal bone, one on each side. Each inferior petrosal sinus drains the cavernous sinus into the internal jugular vein.

Structure

The inferior petrosal sinus is situated in the inferior petrosal sulcus, formed by the junction of the petrous part of the temporal bone with the basilar part of the occipital bone. It begins below and behind the cavernous sinus and, passing through the anterior part of the jugular foramen, ends in the superior bulb of the internal jugular vein.

Function

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

Additional images

File:Gray568.png|Sagittal section of the skull, showing the sinuses of the dura.

References

Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

veins-of-the-head-and-neck

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