Inferior petrosal sinus

Vein: Inferior petrosal sinus
Dural veins
The sinuses at the base of the skull. (Inferior petrosal sinus visible at center, between superior petrosal sinus and basilar plexus.)
Latin	sinus petrosus inferior
Gray's	subject #171 659
Source	cavernous sinus
Drains to	internal jugular vein
MeSH	Cranial+Sinuses
Dorlands / Elsevier	s_12/12739065

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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 images

• 

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

See also

• Dural venous sinuses

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.