Superior petrosal sinus
Encyclopedia
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
.
Cavernous sinus
The cavernous sinus , within the human head, is a large collection of thin-walled veins creating a cavity bordered by the temporal bone of the skull and the sphenoid bone, lateral to the sella turcica.-Contents:...
and passes backward and laterally to drain into the transverse sinus.
The sinus runs in the attached margin of the tentorium cerebelli
Tentorium cerebelli
The tentorium cerebelli or cerebellar tentorium is an extension of the dura mater that separates the cerebellum from the inferior portion of the occipital lobes.-Anatomy:...
, 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
Tympanic cavity
The tympanic cavity is a small cavity surrounding the bones of the middle ear.It is formed from the tubotympanic recess, an expansion of the first pharyngeal pouch....
.