Ciliary arteries

The ciliary arteries are divisible into three groups, the long posterior, short posterior, and the anterior.


 * The short posterior ciliary arteries from six to twelve in number, arise from the ophthalmic as it crosses the optic nerve.


 * The long posterior ciliary arteries, two in number, pierce the posterior part of the sclera at some little distance from the optic nerve.


 * The anterior ciliary arteries are derived from the muscular branches of the ophthalmic artery.