This updated Sixth Edition of BRS Embryology is designed to help students succeed on the USMLE and course exams. Acclaimed for its easy-to-read, easy-to-scan outline format, this bestselling book includes over 220 USMLE-style questions with complete answers and explanations, as well as exams at the end of each chapter and a comprehensive USMLE-format examination at the end of the book. Enhanced by outstanding radiographs, sonograms, computed tomography scans, and clinical photographs of various congenital malformations, this proven book covers the facts and concepts tested on the USMLE within the context of human embryologic development. Offered in both print and online formats, the book boosts student confidence as they prepare for exams and provides maximum accessibility and portability for in-class or on-the-go learning.