The book presents a week-by-week and stage-by-stage view of how fetal organs and systems develop, why and when birth defects occur, and what roles the placenta ... » 

The book presents a week-by-week and stage-by-stage view of how fetal organs and systems develop, why and when birth defects occur, and what roles the placenta and fetal membranes play in development. The comprehensively updated 8th edition comes with access to the complete contents online via Student Consult, plus 18 phenomenal embryology animations, additional review questions and answers, and more. «