Premium
Mathematical approach to measurements on embryonic chick lens
Author(s) -
Wolpow Edward R.,
Marimont Rosalind B.
Publication year - 1967
Publication title -
journal of morphology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.652
H-Index - 74
eISSN - 1097-4687
pISSN - 0362-2525
DOI - 10.1002/jmor.1051210107
Subject(s) - lens (geology) , spheroid , curvature , oblate spheroid , biology , anatomy , optics , physics , geometry , mathematics , classical mechanics , in vitro , biochemistry
Profiles of fresh chick lenses of 5, 8, 11, 14, 17 and 20 days embryological age were photographed and from tracings of these profiles, volumes were calculated using a formula for volume of a solid of revolution. Accurate volumes were also obtained by assuming the lens to be two half oblate spheroids of different minor axis, or, better, two half‐solids of profile (x/a) k + (y/b) k = 1. In addition, the k in this equation described well the curvature of the lens profiles and thus provided a quantitative measure of developing lens shape. Lens diameter, depth and shift of equatorial diameter upon lens axis as a function of age were also studied.