Quain's elements of anatomy . .—Yvhen the lens has been hardened and the capsuleremoved, a succession of concentric laminte may be detached from itlike the coats from an onion. They are not continuous, but sejDarateinto parts opposite the radiating lines above described (fig. 365). Thelaminae are composed of long, riband-shaped, microscopic fibres, -g^Voinch broad, which adhere together by their edges, the latter being oftenfinely serrated (fig. 366, a), and pass in a curved dhection fr^om theintersecting planes of the anterior half of the lens to those of theposterior half, or vice versa: in
Quain's elements of anatomy . .—Yvhen the lens has been hardened and the capsuleremoved, a succession of concentric laminte may be detached from itlike the coats from an onion. They are not continuous, but sejDarateinto parts opposite the radiating lines above described (fig. 365). Thelaminae are composed of long, riband-shaped, microscopic fibres, -g^Voinch broad, which adhere together by their edges, the latter being oftenfinely serrated (fig. 366, a), and pass in a curved dhection fr^om theintersecting planes of the anterior half of the lens to those of theposterior half, or vice versa: in this course no fibre passes from onepole to the other, but those fibres which begin near the pole or centreof one surface, terminate near the marginal part of a plane on theopposite surface, and conversely ; the intervening fibres passing to theircorresponding places between. The arrangement will be better under-stood by a reference to fig. 364, where the course of the fibres in thefoetal lens is diagrammatically THE LENS. 427 The lens-fibres, as the history of their development shows, are to belooked upon as much elongated cells. In the young state each hasa clear oval nucleus, but in the Mly-formed lens the nuclei have dis- Fig. 365. Fi?. 366.
Size: 1294px × 1931px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
