The elements of Embryology (1889) The elements of Embryology elementsofembryo00fostuoft Year: 1889 THE OPTIC VESICLE. Fig. 51. 143 pCh Section of the Eye of Chick at the Fourth Day. ej). superficial epiblast of the side of the head. R. true retina : anterior wall of the optic cup. p. Ch. pigment- epitheUum of the choroid : posterior wall of the optic cup. b is placed at the extreme lip of the optic cup at what will become the margin of the iris. I. the lens. The hind wall, the nuclei of whose elongated cells are shewn at nl, now forms nearly the whole mass of the lens, the front wall
The elements of Embryology (1889) The elements of Embryology elementsofembryo00fostuoft Year: 1889 THE OPTIC VESICLE. Fig. 51. 143 pCh Section of the Eye of Chick at the Fourth Day. ej). superficial epiblast of the side of the head. R. true retina : anterior wall of the optic cup. p. Ch. pigment- epitheUum of the choroid : posterior wall of the optic cup. b is placed at the extreme lip of the optic cup at what will become the margin of the iris. I. the lens. The hind wall, the nuclei of whose elongated cells are shewn at nl, now forms nearly the whole mass of the lens, the front wall being reduced to a layer of flattened cells el. m. the mesoblast surrounding the optic cup and about to form the choroid and sclerotic. It is seen to pass forward between the lip of the optic cup and the superficial epiblast.
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