Category: C

  • Ciliary processes

    The ridges behind the iris to which the lens of the eye is attached. One of about 70 prominent meridional ridges projecting from the corona ciliaris of the choroid coat of the eye to which the suspensory ligament of the lens is attached. These have the same structure as the rest of the choroid and…

  • Ciliary muscle

    A muscle which makes the lens of the eye change its shape to focus on objects at different distances. The smooth muscle forming a part of the ciliary body of the eye. Contraction pulls the choroid forward, lessening tension on the fibers of the zonula (suspensory ligament) and allowing the lens, which is elastic, to…

  • Ciliary ganglion

    A parasympathetic ganglion in the orbit of the eye, supplying the intrinsic eye muscles. A tiny ganglion in the rear portion of the orbit. It receives preganglionic fibers through the oculomotor nerve from the Edinger-Westphal nucleus of the midbrain. Six short ciliary nerves pass from it to the eyeball. Postganglionic fibers innervate the ciliary muscle,…

  • Ciliary body

    The part of the eye which connects the iris to the choroid. Thick part of a vascular membrane joining the iris and choroid of the eye. Thickened portion of the vascular tunic of the eye between the choroid and the iris. The part of the eye that connects the choroid with the iris. It consists…

  • Ciliary

    Referring to the eyelid or eyelashes. Pertaining to any hairlike processes, especially the eyelashes, and to eye structures such as the ciliary body.    

  • Cicatrise

    To heal and form a scar, or to cause a wound to heal and form a scar.  

  • Chvostek’s sign

    An indication of tetany, where a spasm is produced if the facial muscles are tapped. A spasm of the facial muscles following a tap on the facial nerve; seen in hypocalcemic tetany.  

  • Chrysotherapy

    Treatment which involves gold injections. Treatment of disease (e.g., rheumatoid arthritis) with chemicals containing gold; possible side effects include blood, skin, kidney, and liver disorders. The treatment of disease by the administration of gold or its compounds. The injection of gold salts is claimed by some authorities to be extremely effective in the treatment of…

  • Chronic toxicity

    Exposure to harmful levels of a toxic substance over a period of time.  

  • Chronic sick and disabled persons act 1970

    An Act of Parliament in the UK which provides benefits such as alterations to their homes for people with long-term conditions.