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}}