. Quain's elements of anatomy . 426 THE EYE. lines at opposite poles have an alternating position (not being overone another), thus of those seen on the posterior surface of the foetal Fig. Fig. 363.—1, FRONT VIEW ; 2, hind view op the fibkous structitke of the adultLENS (after Arnold). \ lens, one is directed vertically upT^ards, and the other two down-wards and to either side, whereas those on the anterior surface are Fig. 364. Fig. 364.—Diagram to illttstkate the course op the FIBRES IN THE FCETAL CRYSTALLINE LENS (AlleU .TllOmSOE). a, anterior ; p, posterior pole. directed one direct


. Quain's elements of anatomy . 426 THE EYE. lines at opposite poles have an alternating position (not being overone another), thus of those seen on the posterior surface of the foetal Fig. Fig. 363.—1, FRONT VIEW ; 2, hind view op the fibkous structitke of the adultLENS (after Arnold). \ lens, one is directed vertically upT^ards, and the other two down-wards and to either side, whereas those on the anterior surface are Fig. 364. Fig. 364.—Diagram to illttstkate the course op the FIBRES IN THE FCETAL CRYSTALLINE LENS (AlleU .TllOmSOE). a, anterior ; p, posterior pole. directed one directly downwards and the othertwo upwards and to the sides. These lines arethe edges of planes or septa within the lensdiverging from the axis, and receiving the endsof the lens-fibres, which here abut against oneanother. As Tweedy has pointed out, they maybe seen, by the aid of the ophthalmoscope, evenduring life. The rays seldom meet at a point,but usually along a somewhat irregular line —When the lens has been hardened and the capsuleremoved, a succession of concentric laminae may be detached from itlike the coats from an onion. They are not continuous, but separatei


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