Corpus: Short ciliary nerves: Unterschied zwischen den Versionen
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==Definition== | ==Definition== | ||
The '''short ciliary nerves''' are 6-10 short, thin bundles of nerve fibers that arise from the [[Corpus:Ciliary ganglion|ciliary ganglion]]. These nerves carry [[Corpus:Parasympathetic fibers|parasympathetic fibers]] from the [[Corpus:Oculomotor nerve|oculomotor nerve]], which synapse in the [[Corpus:Ganglion|ganglion]]. They then enter the [[Corpus:Eye|eye]] to innervate the inner [[Corpus:Eye muscles|eye muscles]], specifically the [[Corpus:Sphincter pupillae muscle|sphincter pupillae]] and [[Corpus:Ciliary muscle|ciliary muscles]]. | The '''short ciliary nerves''' are 6-10 short, thin bundles of nerve fibers that arise from the [[Corpus:Ciliary ganglion|ciliary ganglion]]. These nerves carry [[Corpus:Parasympathetic fibers|parasympathetic fibers]] from the [[Corpus:Oculomotor nerve|oculomotor nerve]], which synapse in the [[Corpus:Ganglion|ganglion]]. They then enter the [[Corpus:Eye|eye]] to innervate the inner [[Corpus:Eye muscles|eye muscles]], specifically the [[Corpus:Sphincter pupillae muscle|sphincter pupillae]] and [[Corpus:Ciliary muscle|ciliary muscles]]. | ||
==Anatomy== | ==Anatomy== | ||
The short ciliary nerves emerge in two main bundles from the inferior and superior edges of the ciliary ganglion, with the inferior bundle being somewhat stronger. They travel alongside the [[ | The short ciliary nerves emerge in two main bundles from the inferior and superior edges of the ciliary ganglion, with the inferior bundle being somewhat stronger. They travel alongside the [[Corpus: Ciliary artery|ciliary arteries]] above and below the [[Corpus:Optic nerve|optic nerve]], moving rostrally in an undulating pattern. These nerves are accompanied by the [[Corpus:Long ciliary nerves|long ciliary nerves]], which are branches of the [[Corpus:Nasociliary nerve|nasociliary nerve]]. | ||
Upon reaching the posterior aspect of the eyeball | Upon reaching the posterior aspect of the [[Corpus:Eyeball|eyeball]], the short ciliary nerves penetrate the [[Corpus:Sclera|sclera]] and continue along its inner surface to innervate the ciliary muscle and [[Corpus:Iris|iris]]. | ||
== Clinic == | == Clinic == | ||
Aktuelle Version vom 11. September 2024, 15:43 Uhr
Definition
The short ciliary nerves are 6-10 short, thin bundles of nerve fibers that arise from the ciliary ganglion. These nerves carry parasympathetic fibers from the oculomotor nerve, which synapse in the ganglion. They then enter the eye to innervate the inner eye muscles, specifically the sphincter pupillae and ciliary muscles.
Anatomy
The short ciliary nerves emerge in two main bundles from the inferior and superior edges of the ciliary ganglion, with the inferior bundle being somewhat stronger. They travel alongside the ciliary arteries above and below the optic nerve, moving rostrally in an undulating pattern. These nerves are accompanied by the long ciliary nerves, which are branches of the nasociliary nerve.
Upon reaching the posterior aspect of the eyeball, the short ciliary nerves penetrate the sclera and continue along its inner surface to innervate the ciliary muscle and iris.
Clinic
Damage to the short ciliary nerves can result in the loss of the pupillary reflex and cause mydriasis (dilation of the pupil) on the affected side.