Developmental Stages In Human Embryos
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Developmental Stages In Human Embryos
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Author : Ronan O'Rahilly
language : en
Publisher: Carnegie Institute (WA)
Release Date : 1987
Developmental Stages In Human Embryos written by Ronan O'Rahilly and has been published by Carnegie Institute (WA) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Medical categories.
Developmental Stages In Human Embryos
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Author : Ronan O'Rahilly
language : en
Publisher:
Release Date : 1973
Developmental Stages In Human Embryos written by Ronan O'Rahilly and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with categories.
Developmental Stages In Human Embryos
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Author : Ronan O'Rahilly
language : en
Publisher:
Release Date : 1973
Developmental Stages In Human Embryos written by Ronan O'Rahilly and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with categories.
Developmental Stages In Human Embryos
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Author : Ronan O'Rahilly
language : en
Publisher:
Release Date : 1973
Developmental Stages In Human Embryos written by Ronan O'Rahilly and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with categories.
The Embryonic Human Brain
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Author : Ronan R. O'Rahilly
language : en
Publisher: John Wiley & Sons
Release Date : 2006-09-18
The Embryonic Human Brain written by Ronan R. O'Rahilly and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-09-18 with Medical categories.
The new edition of The Embryonic Human Brain: An Atlas of Developmental Stages represents the integration of analysis of the serial sections of human embryos in the Carnegie collection with results of the latest ultrasound studies. It provides summaries of the morphological status of the brain at each stage of development, covering both normal and anomalous conditions. Preceding the atlas are several chapters that present historical aspects, techniques, and prenatal measurements, as well as an introduction to embryonic staging, and terminology accompanied by over definitions of key terms. Now illustrated in full colour throughout Includes high quality photographs, photomicrographs, and diagrams Expands coverage of magnetic resonance imaging of the fetal and perinatal periods Highlights molecular and genetic aspects of normal and abnormal development of the brain Utilizes a set of standardized abbreviations Provides selected references to seminal studies Review for the Second Edition: "[A] really beautiful and wonderfully informative book that no embryologist, comparative anatomist, pediatric neurologist or neurosurgeon should be without. Putting aside the medical relevance of this atlas, it also provides the most captivating version of one of the most complex and fascinating embryological stories of all.” BRAIN This atlas is an invaluable resource for neuroscientists, developmental biologists, comparative anatomists, neurologists, pathologists, radiologists, and neurosurgeons.
Biokinetics And Biodynamics Of Human Differentiation
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Author : Erich Blechschmidt, M.D.
language : en
Publisher: North Atlantic Books
Release Date : 2012-05-15
Biokinetics And Biodynamics Of Human Differentiation written by Erich Blechschmidt, M.D. and has been published by North Atlantic Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-05-15 with Medical categories.
Fifty years ago the field of human embryology was incomplete; prior to that time the anatomy of early human embryos was still unknown, and there was much to be learned about the older stages of human embryonic development. It is now understood that human organs result from step-by-step differentiations of the growing human embryo. Research by renowned embryologist Erich Blechschmidt, MD, showed that differentiations are not only the result of a gene effect, but are also brought about through growth initiated by extragenetic (occurring outside the gene) information. Without this extragenetic information the differentiation would not begin. Dr. Blechschmidt and coauthor Raymond Gasser, PhD, maintain that Haeckel's biogenetic law (ontogeny recapitulates phylogeny) was an erroneous attempt to explain developmental processes. Blechschmidt's human embryological investigations showed that Darwin's principles (mutation and selection) are likely valid for the origin of the species, but that they cannot explain the ontogenesis of the organs. The ontogenesis of each individual cannot be derived from phylogenetic facts. The authors stress that a clear distinction must be made between the vast field of phylogenetics and the much more exact and understandable field of ontogenetics—particularly the process of differentiation—and their goal is to present not only the abstract biokinetic principles of differentiation, but the originality of embryonic human beings as well. Their knowledge of developmental movements leads to their conclusion that differentiation is an undivided biodynamic process that occurs during development and includes the chemical processes as well. Logically organized into two sections (the first covers early metabolic fields and includes chapters on the one-cell human ovum, the early embryo, blood vessels, the nervous system, head region, trunk, and limbs; the second describes metabolic fields in later developmental stages, distinguishing fields of corrosion, densation, contusion, distusion, retention, dilation, liquation, and detraction), Biokinetics and Biodynamics of Human Differentiation warrants reading by thoughtful professionals in a number of fields concerned with embryonic differentiation. A new preface by Dr. Gasser addresses how the book's principles and findings were and are understood in the field of human embryology.
Stem Cells And The Future Of Regenerative Medicine
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Author : Institute of Medicine
language : en
Publisher: National Academies Press
Release Date : 2002-01-25
Stem Cells And The Future Of Regenerative Medicine written by Institute of Medicine and has been published by National Academies Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-01-25 with Science categories.
Recent scientific breakthroughs, celebrity patient advocates, and conflicting religious beliefs have come together to bring the state of stem cell researchâ€"specifically embryonic stem cell researchâ€"into the political crosshairs. President Bush's watershed policy statement allows federal funding for embryonic stem cell research but only on a limited number of stem cell lines. Millions of Americans could be affected by the continuing political debate among policymakers and the public. Stem Cells and the Future of Regenerative Medicine provides a deeper exploration of the biological, ethical, and funding questions prompted by the therapeutic potential of undifferentiated human cells. In terms accessible to lay readers, the book summarizes what we know about adult and embryonic stem cells and discusses how to go about the transition from mouse studies to research that has therapeutic implications for people. Perhaps most important, Stem Cells and the Future of Regenerative Medicine also provides an overview of the moral and ethical problems that arise from the use of embryonic stem cells. This timely book compares the impact of public and private research funding and discusses approaches to appropriate research oversight. Based on the insights of leading scientists, ethicists, and other authorities, the book offers authoritative recommendations regarding the use of existing stem cell lines versus new lines in research, the important role of the federal government in this field of research, and other fundamental issues.
The Anatomy Of The Human Embryo
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Author : Gerd Steding
language : en
Publisher: Karger Medical and Scientific Publishers
Release Date : 2009
The Anatomy Of The Human Embryo written by Gerd Steding and has been published by Karger Medical and Scientific Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Medical categories.
The present anatomical atlas concentrates on the early weeks of prenatal development of the human embryo. It comprises more than 800 scanning electron-microscopic pictures of specimens of exclusively human embryos. The three-dimensional appearing illustrations show the development of the external form of the face, neck, trunk and limbs. Besides, the brain and the viscera of the head, neck, thorax, abdomen and pelvis all dissected into layers are represented in their position and spatial form. The juxtaposition of pictures of temporally close developmental stages reveals the changes in the form of the organs. Photographs of the same organic system are usually shown at the same magnification and clearly demonstrate the growth process. Simple outline drawings provided with the principal nomenclature facilitate the orientation within the specimens. A brief introduction to each chapter explains the most significant developmental steps depicted. This atlas is of great interest not only to anatomists, embryologists, histologists and developmental biologists, but also to biologists, biochemists and geneticists. Moreover, it serves as a valuable reference book for clinicians such as gynecologists, obstetricians, pediatric surgeons and pediatric cardiologists.
Embryo Development
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Author : David Reyes
language : en
Publisher:
Release Date : 2013
Embryo Development written by David Reyes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Embryology categories.
In this book, the authors discuss the stages, mechanisms and clinical outcomes of embryo development. Topics include chick embryogenesis as a unique platform to study the effects of environmental factors on embryo development; molecular and cellular aspects of blastocyst dormancy and reactivation for implantation; limb development and the emergence and function of the apical ectodermal ridge; and the use of time lapse photography in an in vitro fertilization program for better selection of embryo transfer.
Embryos Under The Microscope
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Author : Jane Maienschein
language : en
Publisher: Harvard University Press
Release Date : 2014-05-20
Embryos Under The Microscope written by Jane Maienschein and has been published by Harvard University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-20 with Science categories.
Too tiny to see with the naked eye, the human embryo was just a hypothesis until the microscope made observation of embryonic development possible. This changed forever our view of the minuscule cluster of cells that looms large in questions about the meaning of life. Embryos under the Microscope examines how our scientific understanding of the embryo has evolved from the earliest speculations of natural philosophers to today’s biological engineering, with its many prospects for life-enhancing therapies. Jane Maienschein shows that research on embryos has always revealed possibilities that appear promising to some but deeply frightening to others, and she makes a persuasive case that public understanding must be informed by up-to-date scientific findings. Direct observation of embryos greatly expanded knowledge but also led to disagreements over what investigators were seeing. Biologists confirmed that embryos are living organisms undergoing rapid change and are not in any sense functioning persons. They do not feel pain or have any capacity to think until very late stages of fetal development. New information about DNA led to discoveries about embryonic regulation of genetic inheritance, as well as evolutionary relationships among species. Scientists have learned how to manipulate embryos in the lab, taking them apart, reconstructing them, and even synthesizing—practically from scratch—cells, body parts, and maybe someday entire embryos. Showing how we have learned what we now know about the biology of embryos, Maienschein changes our view of what it means to be alive.