Elaine Marieb once again brings her dedicated attention to detail and unwavering commitment to quality to the Sixth Edition of her best-selling Human Anatomy and Physiology textbook. Each page of this new edition has been carefully reviewed and edited to give readers the most clear and concise explanations of difficult topics. The enhanced art program helps even the least-prepared readers understand key concepts, and the restructured and expanded media package offers readers convenient access to more animations, tutorials, and online resources than ever before. Cutting-edge research areas such as DNA fingerprinting and stem cell research have also been added.