Short ciliary nerves
|Short ciliary nerves|
Plan of oculomotor nerve. (Short ciliary labeled at center right.)
|Latin||nervi ciliares breves|
|Anatomical terms of neuroanatomy|
The branches of the ciliary ganglion are the short ciliary nerves.
These are delicate filaments, from six to ten in number, which arise from the forepart of the ganglion in two bundles connected with its superior and inferior angles; the lower bundle is the larger.
The short ciliary nerve contains parasympathetic and sympathetic nerve fibers. The parasympathetics arise from the Edinger-Westphal nucleus and synapse in the ciliary ganglion via the oculomotor nerve, the postganglionic parasympathetics leave the ciliary ganglion in the short ciliary nerve and supply the ciliary body and iris. Sympathetics are provided by the superior cervical ganglion and they reach the ganglion either as branches of the nasociliary nerve or directly from the extension of the plexus on the ophthalmic artery (sympathetic branch to ciliary ganglion).
Damage to the short ciliary nerve may result in loss of the pupillary light reflex, or mydriasis.
- lesson3 at The Anatomy Lesson by Wesley Norman (Georgetown University) (orbit4)
- cranialnerves at The Anatomy Lesson by Wesley Norman (Georgetown University) (III)
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