Inferior petrosal sinus

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.)
Details
Latin	sinus petrosus inferior
Source	cavernous sinus
Drains to	internal jugular vein
Identifiers
MeSH	A07.231.908.224
Dorlands; /Elsevier	s_12/12739065
TA	Lua error in Module:Wikidata at line 744: attempt to index field 'wikibase' (a nil value).
TH	{{#property:P1694}}
TE	{{#property:P1693}}
FMA	{{#property:P1402}}
	Anatomical terminology [[[d:Lua error in Module:Wikidata at line 863: attempt to index field 'wikibase' (a nil value).\|edit on Wikidata]]]

The inferior petrosal sinuses are small sinuses situated on the inferior border of the petrous part of the temporal bone on each side.

Each inferior petrosal sinus drains the cavernous sinus into the internal jugular vein.

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 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

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)