Short posterior ciliary arteries 5396329 204914234 2008-04-11T13:28:09Z BoP 64495 /* Course and target */ Cirle of Zinn-Haller {{Infobox Artery | Name = {{PAGENAME}} | Latin = arteriae ciliares posteriores breves | GraySubject = 146 | GrayPage = 571 | Image = Gray873.png | Caption = The arteries of the choroid and iris. The greater part of the sclera has been removed. | Image2 = Gray514.png | Caption2 = The ophthalmic artery and its branches. | BranchFrom = [[ophthalmic artery]] | BranchTo = | Vein = [[vorticose veins]] | Supplies = [[choroid]] (up to the equator of the eye) <BR> [[ciliary process]]es| MeshName = | MeshNumber = | DorlandsPre = a_61 | DorlandsSuf = 12153868 | }} The '''short posterior ciliary arteries''' from six to twelve in number, arise from the [[ophthalmic artery|ophthalmic]] as it crosses the [[optic nerve]]. ==Course and target== They pass forward around the [[optic nerve]] to the posterior part of the [[eyeball]], pierce the [[sclera]] around the entrance of the optic nerve, and supply the [[choroid]] (up to the equator of the eye) and [[ciliary process]]es. Some branches of the short posterior ciliary arteries also supply the [[optic disc]] via an anastomotic ring, the [[Circle of Zinn-Haller]] or Circle of Zinn, which is associated with the fibrous extension of the ocular tendons ([[Annulus of Zinn]]). ==Additional images== <gallery> Image:Gray880.png|The terminal portion of the optic nerve and its entrance into the eyeball, in horizontal section. </gallery> ==External links== * {{eMedicineDictionary|Short+posterior+ciliary+arteries}} {{Gray's}} {{circulatory-stub}} {{Arteries of head and neck}}