petrosal sinus
1petrosal sinus — n either of two venous sinuses on each side of the base of the brain: a) a small superior sinus that connects the cavernous and transverse sinuses of the same side called also superior petrosal sinus b) a larger inferior sinus that is situated in …
2petrosal sinus — noun : any of four venous sinuses at the base of the brain: a. : a small superior sinus on each side that connects the cavernous and lateral sinuses of the same side b. : a larger inferior sinus on each side that extends from the end of the… …
3Inferior petrosal sinus — Infobox Vein Name = Inferior petrosal sinus Latin = sinus petrosus inferior GraySubject = 171 GrayPage = 659 Caption = Dural veins Caption2 = The sinuses at the base of the skull. (Inferior petrosal sinus visible at center, between superior… …
4Superior petrosal sinus — Infobox Vein Name = Superior petrosal sinus Latin = sinus petrosus superior GraySubject = 171 GrayPage = 659 Caption = Dural veins Caption2 = The sinuses at the base of the skull. (Superior petrosal sinus visible at center left.) DrainsFrom =… …
5inferior petrosal sinus — n PETROSAL SINUS (b) …
6superior petrosal sinus — n PETROSAL SINUS (a) …
7petrosal sinus inferior — s. petrosus inferior …
8petrosal sinus superior — s. petrosus superior …
9inferior petrosal sinus sampling — (IPSS) a test for the cause of Cushing syndrome: catheters are inserted into the inferior petrosal sinuses and venous blood is withdrawn and analyzed for its levels of corticotropin; this is then compared with corticotropin levels in the patient… …
10groove for inferior petrosal sinus — sulcus sinus petrosi inferioris …