For the latest information about embryological development, turn to "Human Embryology and Developmental Biology". This comprehensive, clearly written textbook emphasizes the molecular basis of human embryological development, explaining the "why" in addition to the "how." Many full-color clinical photographs and illustrations stress the function of embryological structures and the progression of development. All information has been updated to include the most current research findings and contemporary clinical applications. Chapter summaries and review questions aid in students' learning. This edition includes new clinical photographs, Clinical Correlation boxes, and clinical vignettes.