| Long ciliary nerves | |
|---|---|
 Nerves of the orbit, and theciliary ganglion. Side view. | |
| Details | |
| From | Nasociliary nerve |
| Fiber type | "Somatosensory" (via V1 Lacrimal), and "Sympathetic" (via V2 Zygomatic) |
| Identifiers | |
| Latin | nervi ciliares longi |
| TA98 | A14.2.01.027 |
| TA2 | 6206 |
| FMA | 52691 |
| Anatomical terms of neuroanatomy | |
Thelong ciliary nerves are 2-3[1] nerves that arise from thenasociliary nerve (itself a branch of theophthalmic branch (CN V1) of thetrigeminal nerve (CN V)). They enter the eyeball to provide sensory innervation to parts of the eye, andsympatheticvisceral motor innervation to thedilator pupillae muscle.
The long ciliary nerves branch from thenasociliary nerve as it crosses theoptic nerve (CN II).[1]
Accompanied by theshort ciliary nerves, the long ciliary nerves pierce and enter[1] the posterior part of[citation needed] thesclera near where it is entered by the optic nerve, then run anterior-ward between the sclera and thechoroid.[1]
The long ciliary nerves are distributed to the ciliary body,iris, andcornea.[1]
The long ciliary nerves provide sensory innervation to theeyeball, including the cornea.[citation needed]
The long ciliary nerves contain post-ganglionic sympathetic fibers from thesuperior cervical ganglion for thedilator pupillae muscle.[1] The sympathetic fibers to the dilator pupillae muscle mainly travel in thenasociliary nerve but there are also sympathetic fibers in the short ciliary nerves that pass through the ciliary ganglion without forming synapses.[citation needed]
This article incorporates text in thepublic domain frompage 888 of the 20th edition ofGray's Anatomy(1918)
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