CHAPTER X. 



THE CILIARY BODY. 



Ciliary Body. — Between the iris and the ora serrata. 

 (anterior limit of the retina) lies the ciliary body, which 

 consists of the ciliary processes and muscles. It is th& 

 source from which the lens and vitreous derives 

 nourishment largely. Is composed ot two portions — 

 (1) a muscular and (2) a pigmented and vascular portion. 

 Around the crystalline lens there is a wide black circle^ 

 the ciliary processes, forming regular radiating folds, 

 which project by their inner extremities inward. There 

 are about 120 of these 

 folds, composed of connec- 

 tive tissue, which is con- 

 tinuous with that of the 

 iris and pectinate liga- 

 ment; also of blood ves- 

 sels, convoluted, and cov- 

 ered over all by a layer of 

 pigment. From the fur- 

 pjg 54 rows that separate these 



processes posteriorly we see a hyaline structure ex- 

 tending, that constitutes the zonule of Zinn, which goes 

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