This thoroughly revised 4th edition offers both clear descriptions and explanations of human embryonic development based on all the most up-to-date scientific discoveries and understanding. Particular attention is paid to the fundamental aspects of molecular mechanisms in development, introducing you to major families of important developmental molecules. Clinical aspects of development are covered throughout in boxed sections of text. First-rate illustrations and Student Consult access, including online animations, complete this essential package.

这本完全修订的第四版教材对人类胚胎发育进行了清晰的描述与介绍，书中内容基于最新的科学发现和认识。本书尤其重点从分子机制方面描述了胚胎发育，向读者介绍了参与发育的分子主要家族。利用书中的文本框介绍了发育的临床表现。一流的插图和Student Consult书目（包括在线动画），从而使本书更为完善。

* Integrates contemporary developmental knowledge with classical embryological understanding. * Interprets complex molecular developments, to help you learn how exactly the embryo develops. * Presents first-rate clinical photos and clear drawings, to help you to memorize and understand normal and abnormal development. * Uses clear sections within the chapter and summaries at the end of each to help you navigate this complex subject. * Includes review questions at the end of each chapter to help you assess your knowledge.

* Provides more coverage of molecular development to help you interpret complex information. * Helps you to understand the full 3-D development of the embryo and the shapes of the developing forms using detailed animations on Student Consult. * Revises the section on the development of the head, particularly useful for dental students.