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.

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ciliary muscle n a circular band of smooth muscle fibers situated in the ciliary body and serving as the chief agent in accommodation when it contracts by drawing the ciliary processes centripetally and relaxing the suspensory ligament of the lens so that the lens is permitted to become more convex

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musculus ciliaris.

Medical dictionary. 2011.

Look at other dictionaries:

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

  • ciliary muscle — UK [ˌsɪlɪərɪ ˈmʌs(ə)l] / US noun [countable] Word forms ciliary muscle : singular ciliary muscle plural ciliary muscles medical a muscle in your eye that controls its lens …   English dictionary

  • ciliary muscle — Anat. the smooth muscle in the ciliary body, the action of which affects the accommodation of the eye. See diag. under eye. [1875 80] * * * …   Universalium

  • ciliary muscle — noun A muscle controlling the eyes accommodation for viewing objects at varying distances. See Also: ciliary …   Wiktionary

  • ciliary muscle — noun : an annular muscle composed of nonstriated fibers situated in the ciliary body and serving as the chief agent in accommodation see eye illustration …   Useful english dictionary

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

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

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

  • oblique fibers of ciliary muscle — fibrae radiales musculi ciliaris …   Medical dictionary

  • radial fibers of ciliary muscle — fibrae radiales musculi ciliaris …   Medical dictionary

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