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Long posterior ciliary arteries
From Wikipedia, the free encyclopedia
| Artery: Long posterior ciliary arteries | |
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| The arteries of the choroid and iris. The greater part of the sclera has been removed. | |
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| Iris, front view. | |
| Latin | arteriae ciliares posteriores longae |
| Gray's | subject #146 571 |
| Source | ophthalmic artery |
| Dorlands/Elsevier | a_61/12153876 |
The long posterior ciliary arteries, two in number, pierce the posterior part of the sclera at some little distance from the optic nerve, and run forward, along either side of the eyeball, between the sclera and choroid, to the ciliary muscle, where they divide into two branches.
These form an arterial circle, the circulus arteriosus major, around the circumference of the iris, from which numerous converging branches run, in the substance of the iris, to its pupillary margin, where they form a second arterial circle, the circulus arteriosus minor.
The long posterior ciliary arteries supply the iris, ciliary body and choroid.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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