Ciliary arteries
Encyclopedia
The ciliary arteries are divisible into three groups, the long posterior, short posterior, and the anterior.
- The short posterior ciliary arteriesShort posterior ciliary arteriesThe short posterior ciliary arteries from six to twelve in number, arise from the ophthalmic as it crosses the optic nerve.-Course and target:...
from six to twelve in number, arise from the ophthalmicOphthalmic arteryThe ophthalmic artery is the first branch of the internal carotid artery distal to the cavernous sinus. Branches of the OA supply all the structures in the orbit as well as some structures in the nose, face and meninges...
as it crosses the optic nerveOptic nerveThe optic nerve, also called cranial nerve 2, transmits visual information from the retina to the brain. Derived from the embryonic retinal ganglion cell, a diverticulum located in the diencephalon, the optic nerve doesn't regenerate after transection.-Anatomy:The optic nerve is the second of...
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- The long posterior ciliary arteriesLong posterior ciliary arteriesThe long posterior ciliary arteries are arteries of the head arising, together with the other ciliary arteries, from the ophtalmic artery. There are two in each eye.-Course:...
, two in number, pierce the posterior part of the sclera at some little distance from the optic nerve.
- The anterior ciliary arteriesAnterior ciliary arteriesThe 7 anterior ciliary arteries are derived from the muscular branches of the Ophthalmic Artery.-Course:They run to the front of the eyeball in company with the extraocular muscles, form a vascular zone beneath the conjunctiva, and then pierce the sclera a short distance from the cornea and end in...
are derived from the muscular branches of the ophthalmic artery.