Following the same chapter organization as Guyton & Halls Textbook of Medical Physiology, 11th Edition, this powerful tool provides an efficient and comprehensive review for the USMLE Step 1 exam. Over 1,000 Board-style questions, with detailed rationales, cover the most essential, need-to-know concepts in physiology. Includes thorough reviews of all major body systems, with emphasis on system interaction, homeostasis, and pathophysiology.