{{Infobox vein | Name = Intercavernous sinuses | Latin = sini intercavernosi | Image = Gray488.png | Caption = Dural veins | Image2 = Gray570.png | Caption2 = The sinuses at the base of the skull. (Visible as light blue circle at center.) | DrainsFrom = | DrainsTo = | Artery = }} The '''intercavernous sinuses''' are two in number, an anterior and a posterior, and connect the two cavernous sinuses<ref>{{DorlandsDict|nine/000957001|Intercavernous sinuses}}</ref> across the middle line. thumb|300px|Intercavernous sinuses The anterior passes in front of the hypophysis cerebri (pituitary gland), the posterior behind it, and they form with the cavernous sinuses a venous circle (circular sinus) around the hypophysis.

The anterior one is usually the larger of the two, and one or other is occasionally absent.

==References== {{Gray's}} {{Reflist}}

==See also== * Dural venous sinuses

{{VeinsHeadNeck}} {{Portal bar|Anatomy}} {{Authority control}}

Category:Veins of the head and neck