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Sinopsis
Excerpt from A Laboratory Manual and Text-Book of Embryology
The study of human embryology deals with the development of the individual from the origin of the germ cells to the adult condition. To the medical student human embryology is of primary importance because it affords a comprehensive understanding of gross anatomy. It is on this account that only recently a prominent surgeon has recommended a thorough study of embryology as one of the foundation stones of surgical training. Embryology not only throws light on the normal anatomy of the adult, but it also explains the occurrence of many anomalies and mon sters, and the origin of certain pathological changes in the tissues. Obstet rics is essentially applied embryology. From the theoretical Side, em bryology is the key with which we may unlock the secrets of heredity, the determination of sex, and, in part, of organic evolution. There is, unfortunately, a View current among graduates in medicine that the field of embryology has been fully reaped and gleaned of its harvest. On the contrary, much productive ground is as yet unworked, and all well-preserved human embryos are of value to the investigator. Only through the co-operation of Clinicians in collecting and preserving embryos will our ignorance of early human development be rectified. At present, practically nothing is known of the maturing ovum, while of fertilization, cleavage, and the formation of the germ layers we are en tirely in the dark. Aborted embryos and those obtained by operation in case of either normal or ectopic pregnancies should always be saved and pre served at once by immersing them intact in IO per cent formalin or in Zenker's ?uid.
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Reseña del editor
Excerpt from A Laboratory Manual and Text-Book of Embryology
The study of human embryology deals with the development of the individual from the origin of the germ cells to the adult condition. To the medical student human embryology is of primary importance because it affords a comprehensive understanding of gross anatomy. It is on this account that only recently a prominent surgeon has recommended a thorough study of embryology as one of the foundation stones of surgical training. Embryology not only throws light on the normal anatomy of the adult, but it also explains the occurrence of many anomalies and mon sters, and the origin of certain pathological changes in the tissues. Obstet rics is essentially applied embryology. From the theoretical Side, em bryology is the key with which we may unlock the secrets of heredity, the determination of sex, and, in part, of organic evolution.
There is, unfortunately, a View current among graduates in medicine that the field of embryology has been fully reaped and gleaned of its harvest. On the contrary, much productive ground is as yet unworked, and all well-preserved human embryos are of value to the investigator. Only through the co-operation of Clinicians in collecting and preserving embryos will our ignorance of early human development be rectified. At present, practically nothing is known of the maturing ovum, while of fertilization, cleavage, and the formation of the germ layers we are en tirely in the dark. Aborted embryos and those obtained by operation in case of either normal or ectopic pregnancies should always be saved and pre served at once by immersing them intact in IO per cent formalin or in Zenker's fluid.
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Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com
This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
Reseña del editor
Excerpt from A Laboratory Manual and Text-Book of Embryology
This book represents an attempt to combine brief descriptions of the vertebrate embryos which are studied in the laboratory with an account of human embryology adapted especially to the medical student. Professor Charles Sedgwick Minot, in his laboratory textbook of embryology, has called attention to the value of dissections in studying mammalian embryos and asserts that "dissection should be more extensively practised than is at present usual in embryological work..." The writer has for several years experimented with methods of dissecting pig embryos, and his results form a part of this book. The value of pig embryos for laboratory study was first emphasized by Professor Minot, and the development of my dissecting methods was made possible through the reconstructions of his former students, Dr. F. T. Lewis and Dr. F. W. Thyng.
The chapters on human organogenesis were partly based on Keibel and Mall's Human Embryology. We wish to acknowledge the courtesy of the publishers of Kollmann's Handatlas, Marshall's Embryology, Lewis-Stohr's Histology and McMurrich's Development of the Human Body, by whom permission was granted us to use cuts and figures from these texts. We are also indebted to Professor J. C. Heisler for permission to use cuts from his Embryology, and to Dr. J. B. De Lee for several figures taken from his "Principles and Practice of Obstetrics." The original figures of chick, pig and human embryos are from preparations in the collection of the anatomical laboratory of the Northwestern University Medical School. My thanks are due to Dr. H. C. Tracy for the loan of valuable human material, and also to Mr. K. L. Vehe for several reconstructions and drawings.
About the Publisher
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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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A Laboratory Manual and TextBook of Embryology Classic Reprint
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A Laboratory Manual and TextBook of Embryology Classic Reprint
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A Laboratory Manual and Text-Book of Embryology (Classic Reprint)
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Paperback. Condición: New. Print on Demand. This book takes a detailed look at embryology, the study of the development of organisms from fertilization to adulthood. The author begins with an overview of the field before diving into the specifics of germ cells, maturation, and fertilization. The book then turns its focus to cleavage, the process by which the fertilized ovum divides into smaller and smaller cells, and gastrulation, the process by which these cells differentiate into the three germ layers that will eventually form the body. Along the way, the author discusses the significance of the germ layers and how they contribute to the final form and function of the organism. The book concludes with a look at the historical development of embryology and its current state, providing an in-depth understanding of this fascinating field. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Nº de ref. del artículo: 9781330373934_0
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A Laboratory Manual and Text-Book of Embryology (Classic Reprint)
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ISBN 13: 9781330373934
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A Laboratory Manual and Text-Book of Embryology (Classic Reprint)
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Paperback. Condición: Brand New. 438 pages. 9.02x5.98x0.89 inches. This item is printed on demand. Nº de ref. del artículo: zk1330373936
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