Source ophthalmic artery TA A12.2.06.032 | Dorlands
/Elsevier a_61/12153876 FMA 70778 | |
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Supplies iris
ciliary body
choroid Latin Arteriae ciliares posteriores longae | ||
The long posterior ciliary arteries are arteries of the head arising, together with the other ciliary arteries, from the ophthalmic artery. There are two in each eye.
Contents
Course
They 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 (incomplete) arterial circle, the circulus arteriosus minor.
Target
The long posterior ciliary arteries supply the iris, ciliary body and choroid.