Human Physiology: An Integrated Approach broke ground with its thorough coverage of molecular physiology seamlessly integrated into a traditional homeostasis-based systems approach. The newly revised Sixth Edition introduces a major reorganization of the early chapters to provide the best foundation for the course and new art features that streamline review and essential topics so that students can access them more easily on an as-needed basis. Accompanying the Sixth Edition, Mastering A and P features activities and assessments for every chapter of the text, including new case studies, art activities, and A and P Flix tutorials.