The Guyton and Hall Physiology Review, by Dr. John E. Hall, is an ideal way to prepare for the USMLE Step I. More than 1,000 board-style questions, as many as 30% revised for this edition, test your knowledge of the most essential, need-to-know concepts in physiology. Review the physiology of all major body systems, with emphasis on system interaction, homeostasis, and pathophysiology, and master a large amount of information in an abbreviated time.

• Focus on all of the essential information you need to know for the physiology portion of the USMLE Step I.
• Reinforce your understanding and visualize physiologic principles with enhanced color figures and well- illustrated line diagrams.