Mometrix Test Preparation's USMLE Step 1 Preparation Secrets Study Guide is the ideal prep solution for anyone who wants to pass their United States Medical Licensing Examination Step 1. The exam is extremely challenging, and thorough test preparation is essential for success. Our study guide includes: * Step-by-step video tutorials to help you master difficult concepts * Tips and strategies to help you get your best test performance * A complete review of all USMLE test sections * General Principles * Body Systems Mometrix Test Preparation is not affiliated with or endorsed by any official testing organization. All organizational and test names are trademarks of their respective owners. The Mometrix guide is filled with the critical information you will need in order to do well on your USMLE exam: the concepts, procedures, principles, and vocabulary that the Federation of State Medical Boards (FSMB) and National Board of Medical Examiners (NBME) expects you to have mastered before sitting for your exam. The General Principles section covers: * Deoxyribonucleic acid (DNA) * Malignancy * Pedigree * Physician-patient relationship * Dehydration * Bacterium * Chi-square test used to evaluate the outcome of a study The Body Systems section covers: * Hematopoietic and Lymphoreticular systems * Central and Peripheral Nervous systems * Skin and Related Connective Tissue * Musculoskeletal system * Respiratory system * Cardiovascular system * Gastrointestinal system * Renal/Urinary system * Reproductive system * Endocrine system * Immune system ...and much more! Our guide is full of specific and detailed information that will be key to passing your exam. Concepts and principles aren't simply named or described in passing, but are explained in detail. The Mometrix USMLE study guide is laid out in a logical and organized fashion so that one section naturally flows from the one preceding it. Because it's written with an eye for both technical accuracy and accessibility, you will not have to worry about getting lost in dense academic language. Many concepts include links to online review videos where you can watch our instructors break down the topics so the material can be quickly grasped. Examples are worked step-by-step so you see exactly what to do. We've helped hundreds of thousands of people pass standardized tests and achieve their education and career goals. We've done this by setting high standards for Mometrix Test Preparation guides, and our USMLE Step 1 Preparation Secrets Study Guide is no exception. It's an excellent investment in your future. Get the USMLE review you need to be successful on your exam.