ciliaris muscle

ciliaris muscle

      muscle of the ciliary body of the eye, between the sclera (white of the eye) and the fine ligaments that suspend the lens. It is composed of both longitudinal and circular fibres and serves to change the shape of the lens, enabling the eye to focus upon near or distant objects.

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Universalium. 2010.

Look at other dictionaries:

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  • Ciliary muscle — The choroid and iris. (Ciliary muscle is labeled near top.) Latin musculus ciliaris Gray s …   Wikipedia

  • fibrae circulares musculi ciliaris — [TA] circular fibers of ciliary muscle: the most internal fibers of the ciliary muscle that form a discrete portion of the ciliary muscle and extend around the apex of the ciliary body close to the root of the iris. Called also MÑŒller fibers or… …   Medical dictionary

  • Ciliary muscle — One of the muscles that relax the zonules to enable the lens to change shape for focusing. The zonules are fibers that hold the lens suspended in position and enable it to change shape during accommodation. * * * ciliary muscle n a circular band… …   Medical dictionary

  • fibrae meridionales musculi ciliaris — [TA] meridional fibers of ciliary muscle: the most external fibers of the ciliary muscle that run meridionally or longitudinally from the reticulum trabeculae toward the ciliary processes. Called also BrÑŒcke fibers and longitudinal fibers of… …   Medical dictionary

  • fibrae radiales musculi ciliaris — [TA] radial fibers of ciliary muscle: the fibers of the ciliary muscle lying between the meridional (external) fibers and the circular (internal) fibers; they run in a radial or oblique direction from one to another and may form a fibrous network …   Medical dictionary

  • radix parasympathica ganglii ciliaris — [TA] parasympathetic root of ciliary ganglion: a short collection of fibers passing from the inferior branch of the oculomotor nerve to the posterior inferior portion of the ciliary ganglion; it contains preganglionic parasympathetic fibers for… …   Medical dictionary

  • radix sympathica ganglii ciliaris — [TA] sympathetic root of ciliary ganglion: postganglionic fibers from the superior cervical ganglion, derived from the internal carotid plexus, to the ciliary ganglion, for distribution by the short ciliary nerves to the dilator muscle of the… …   Medical dictionary

  • circular fibers of ciliary muscle — fibrae circulares musculi ciliaris …   Medical dictionary

  • longitudinal fibers of ciliary muscle — fibrae meridionales musculi ciliaris …   Medical dictionary

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