Index p. 526-540 ; The 9th edition of The Developing Human (TDH) has been thoroughly revised to reflect our current understanding of some of the molecular events that guide development of the embryo. This book also contains more clinically oriented material than previous edition; these section are highlighted in color to set them apart from the rest of the text. This edition follows the official international list of embryological terms (Terminologia Embryonica, 2011). This book includes numerous new color photographs of embryos (normal and abnormal).