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Biokinetics and Biodynamics Of Human Differentiation:Principles and applications
[Hardback - 2012]
erich blechschmidt, m.d.
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Category: Medical
Sub-category: Medical
Additional Category: Life Sciences
Publisher: North Atlantic Books | ISBN: 9781583944523 | Pages: 312
Shipping Weight: .689 | Dimensions: 6.25 x .85 x 9.3 inches

Description

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.

About the Author

Erich Blechschmidt was an anatomist and embryologist who worked for more than forty years on the problem of human form and the way that form arises in the course of ontogeny, principally during the first eight weeks or so after conception. He has provided us with more than 120 scientific papers and numerous books concerning the development of human form and function. One unique aspect of Blechschmidt's research is that it concentrates on the evidence presented by the human embryo itself, in the form of a comprehensive collection of about 200,000 serial sections of embryos at different ages and sixty-four enlarged total reconstructions at the University of Guttingen (The Blechschmidt Collection and Museum). The sustained investigation of this wealth of material led to a totally new way of looking at early human development, which compels us to re-think older interpretations based mainly on phylogenetic or molecular biological studies. It is possible to see how adult functions arise naturally and consistently from the embryo's earlier growth functions. This present book is a condensation of many of these findings and a presentation of the new viewpoint.
—Brian Freeman, Ph.D. Anatomy, UNSW, from the Preface