I.R. Phillips's The Embryology of the Common Marmoset: Callithrix jacchus PDF

By I.R. Phillips

ISBN-10: 3540079556

ISBN-13: 9783540079552

The primates characterize a various crew with the phylogenetic relationships of the var ious species mirrored of their early embryonic improvement. The individuals of the Tupaiidae, Lemuridae and Lorisidae exhibit nice similarities to the reduce mammals or even birds. The Tarsiidae characterize an intermediate step and the Platyrrhini and Catarrhini express the best similarities to guy. throughout the interval of embryogenesis, the scale of an embryo are inadequate consultant to its age and masses extra trustworthy info will be derived from a learn of its exterior shape and inner constitution. exam of embryological specimens from quite a few simian species dates again to the early 1900's yet a lot of this fabric was once accumulated in a haphazard manner from animals shot within the wild. Heuser and Streeter (1941) depicted a sequence of embryos of the rhesus monkey (Macaca mulatta) and correlated their gestational age with exterior shape and dimension. Streeter (1951) prepared human em bryos, among 24. 1 and forty seven. 1 days of post-ovulation age, into age teams or devel opmental horizons in accordance with their exterior shape and inner constitution. every one horizon used to be days aside and numbered XI to XXIII. The transition from embryo to fetus happened on the finish of horizon XXIII and used to be arbitrarily dermed because the element the place bone marrow invaded the cartilaginous precursor within the humerus. the sooner phases I-X were dermed hence, (Heuser and nook, 1957; O'Rahilly, 1973).

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The Embryology of the Common Marmoset: Callithrix jacchus (Advances in Anatomy, Embryology and Cell Biology) by I.R. Phillips

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