petrosal sinus
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to petrosal sinus: cavernous sinus, Dural venous sinuses
in·fe·ri·or pe·tro·sal si·nus
[TA]a paired dural venous sinus running in the groove on the petrooccipital fissure connecting the cavernous sinus with the superior bulb of the internal jugular vein.
Synonym(s): sinus petrosus inferior [TA]
Farlex Partner Medical Dictionary © Farlex 2012
petrosal sinus
The superior or the inferior petrosal sinus.
See also: sinus
Medical Dictionary, © 2009 Farlex and Partners