The Guyton and Hall Physiology Review is the ideal way to prepare for class exams as well as the physiology portion of the USMLE Step 1. More than 1,000 board-style questions and answers allow you to test your knowledge of the most essential, need-to-know concepts in physiology. Includes thorough reviews of all major body systems, with an emphasis on system interaction, homeostasis, and pathophysiology.Designed as a companion to the 13th edition of Guyton and Hall Textbook of Medical Physiology, highlighting essential key concepts and featuring direct page references to specific questions.Provides essential information needed to prepare for the physiology portion of the USMLE Step 1.