Written by well-regarded physiology professor, Linda S. Costanzo, this revised fifth edition provides an excellent physiology review for students preparing for the USMLE Step 1. The book concisely reviews key physiology principles and includes clinical correlations to emphasize connections between physiology and clinical medicine. You will discover: NEW! Full-color design, flow charts, illustrations, and tables that summarize information for convenient review Each chapter is written in the popular Board Review Series (BRS) outline format and features bolded key terms to streamline your study Over 350 USMLE-style questions, answers, and rationales both electronically and in print reinforce your physiology review A FREE companion website offers an online E-book and an interactive question bank with all the questions from the book so you can customize your review tests!