====== Carotid ring ======
The [[internal carotid artery]] exits the [[cavernous sinus]] and enters the [[subarachnoid space]] at the dural constriction known as the [[carotid ring]] or [[clinoidal ring]].

https://www.barrowneuro.org/wp-content/uploads/Figure-1.-Anatomy-of-the-clinoidal-segment-of-the-internal-carotid-artery..jpg

{{https://www.barrowneuro.org/wp-content/uploads/Figure-1.-Anatomy-of-the-clinoidal-segment-of-the-internal-carotid-artery..jpg}}