title: The Developing Human: Clinically Oriented Embryology, 8th Edition
author:  Keith L. Moore 
description: "...packed with excellent and colourful pictures of explaining how the various structures develop and change with time...Basically this is a good choice for someone who likes embryology and wants to get a good mark, not just a pass." <i>Medical Student, University of Nottingham, UK (review of previous edition)</i><br /><br /><b>BMA Book Awards 2008 - Highly Commended</b><br /><br />"An up-to-date textbook on embryology for medical students with a relevance far beyond that. There is abundant illustration of the text and extensive clinical correlation. An extremely accessible book that has a lot more clinical correlation than its previous editions. Its a pleasure to use."
zlib_text: Development
  Chapter Concepts
  22.1 Early Developmental Stages
  • Development begins when a sperm fertilizes an
  egg.
  444
  • The ﬁrst stages of embryonic development in
  animals lead to the establishment of the
  embryonic germ layers.
  445
  • The presence of yolk affects the manner in which
  animal embryos go through the early
  developmental stages.
  446
  • In vertebrates, the nervous system develops
  above the notochord after formation of a neural
  tube.
  447
  22.2 Differentiation and Morphogenesis
  • Cellular differentiation and morphogenesis are
  two processes that occur when specialized
  organs develop.
  448
  • Induction explains development of the nervous
  system and why development in general is an
  orderly process.
  449
  • Homeotic genes and those controlling apoptosis
  are involved in shaping the outward appearance
  of the developed animal.
  450
  22.3 Human Embryonic and Fetal Development
  • Humans, like chicks, are dependent upon
  extraembryonic membranes that perform various
  services and contribute to devel