EYE OF THE ENGLISH SPARROW 



395 



Fig. 28 Enlarged drawing of a vertical section of the lower lid and the ciliary 

 region, showing the relation of the different parts. C, circular muscles of the 

 iris; Bv, blood-vessels; Cj, conjunctiva; CM, ciliary muscles; Cn, ciliary nerves; 

 Co, stratified portion of the cornea; Cp, ciliary processes; Ep, epithelium; F, 

 feather follicle; L, lenticular portion of the lens, Lc, lenticular chamber, LM, 

 depressor palpebral muscle; M, membrane of Descemet; Lp, ligamentum pec- 

 tinatum; Pc, pars ciliaris retinae; R, radial muscles of the iris; Rt, retina; Scl, 

 sclera; Scl c, scleral cartilage; Scl p, scleral plates; T, posterior tendon cf the 

 ciliary muscles attached to the sclera posterior to the ora serrata; U, uvea of iris. 



