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the ciliary body is a continuation of the choroid underlying the corneoscleral junction. its is composed of three structures. list them.
The ciliary ring is the posterior part of the body, and its surface has shallow grooves called ciliary striae.
The ciliary processes is connected to the suspensory ligaments of the lens. They also secrete the aqueous humour which fills the anterior (between the cornea and the iris/pupil) and posterior
(between the iris/pupil and lens/ciliary body) chambers.
Ciliary muscle is arranged as meridianal and circular smooth muscle fibres, Ciliary muscle is innervated by parasympathetic fibres from the oculomotor nerve which synapse in the ciliary
ganglion before passing forward to the eyeball in the short ciliary nerves. Contraction, especially of the meridianal fibres, serves to pull the ciliary body forward, relieving tension on the suspensory ligaments and allowing the elastic lens to become more convex and increase its refractive power.
The ciliary processes is connected to the suspensory ligaments of the lens. They also secrete the aqueous humour which fills the anterior (between the cornea and the iris/pupil) and posterior
(between the iris/pupil and lens/ciliary body) chambers.
Ciliary muscle is arranged as meridianal and circular smooth muscle fibres, Ciliary muscle is innervated by parasympathetic fibres from the oculomotor nerve which synapse in the ciliary
ganglion before passing forward to the eyeball in the short ciliary nerves. Contraction, especially of the meridianal fibres, serves to pull the ciliary body forward, relieving tension on the suspensory ligaments and allowing the elastic lens to become more convex and increase its refractive power.
