First Aid for the Basic Sciences: Organ Systems

913 Pages·2017·38.34 MB·English

Organ Systems
Third Edition
SENIOR EDITORS EDITORS
TAO LE, MD, MHS VINAYAK MURALIDHAR, MD, MSc
Associate Clinical Professor Resident, Harvard Radiation Oncology Program
Chief, Section of Allergy and Immunology Massachusetts General Hospital
Department of Medicine Brigham & Women’s Hospital
University of Louisville School of Medicine
JARED A. WHITE, MD
WILLIAM L. HWANG, MD, PhD Resident, Department of Surgery
Resident, Harvard Radiation Oncology Program Division of Plastic and Reconstructive Surgery
Massachusetts General Hospital University of Florida College of Medicine
Brigham & Women’s Hospital
M. SCOTT MOORE, DO 
Clinical Research Fellow 
Affiliated Laboratories
New York / Chicago / San Francisco / Athens / London / Madrid / Mexico City
Milan / New Delhi / Singapore / Sydney / Toronto
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DEDICATION
To the contributors to this and future editions, who took time to share their knowledge,
insight, and humor for the benefit of students and physicians everywhere.
and
To our families, friends, and loved ones, who supported us
in the task of writing this book.
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Contents
Contributing Authors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vi CHAPTER 6. Neurology and Special Senses ...411
Faculty Reviewers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .vii Embryology, Anatomy, and Physiology . . . . . . . . . . . . .412
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ix Histology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .464
How to Use This Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .x Pathology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .468
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xi Pharmacology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .507
How to Contribute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xiii
CHAPTER 7. Psychiatry......................533
CHAPTER 1. Cardiovascular  ................... 1
Basic Definitions and Concepts . . . . . . . . . . . . . . . . . . . . .534
Embryology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Pathology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .539
Anatomy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Physiology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 CHAPTER 8. Renal...........................583
Pathology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Embryology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .584
Imaging/Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Anatomy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .587
Pharmacology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Histology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .590
Physiology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .594
CHAPTER 2. Endocrine ......................107
Pathology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .623
Hypothalamus and Pituitary . . . . . . . . . . . . . . . . . . . . . . . .108 Pharmacology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .655
Thyroid and Parathyroid . . . . . . . . . . . . . . . . . . . . . . . . . . . .126
Adrenal Gland . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .147 CHAPTER 9. Reproductive...................661
Pancreas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .158
Embryology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .662
Anatomy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .674
CHAPTER 3. Gastrointestinal ................171
Physiology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .681
Embryology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172 Pathology—Genetic Diseases . . . . . . . . . . . . . . . . . . . . . .700
Anatomy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178 Pathology—Female . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .703
Physiology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .192 Pathology—Male . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .733
Pathology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210 Pharmacology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .741
Pharmacology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .258
CHAPTER 10. Respiratory....................747
CHAPTER 4. Hematology and Oncology ......265
Embryology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .748
Embryology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .266 Anatomy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .753
Anatomy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .267 Histology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .758
Pathology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272 Physiology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .761
Pharmacology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310 Pathology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .779
Pharmacology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .818
CHAPTER 5. Musculoskeletal, Skin, and
Connective Tissue...............323
Image Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . .825
Embryology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .324 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .841
Anatomy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .335 About the Editors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .896
Physiology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .354
Pathology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .362
Pharmacology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402
vi
CONTRIBUTING AUTHORS
Haripriya S. Ayyala, MD James Murchison, MD
Resident, Department of Surgery Texas Tech University Health Sciences Center School of
Rutgers New Jersey Medical School Medicine
Class of 2016
James E. Bates, MD
Resident, Department of Radiation Oncology Michael Oh, MD
University of Florida, College of Medicine Resident, Department of Medicine
Deep Bhatt, MD McGaw Medical Center of Northwestern University
University of Iowa Carver College of Medicine
Brent Pickrell, MD
Class of 2016
Resident, Plastic & Reconstructive Surgery
Aaron J. Cohen Harvard Medical School
Harvard Medical School
Class of 2017 Jasmine Rana
Harvard Medical School
Eric Dowling, MD
Class of 2017
University of North Dakota School of Medicine & Health
Sciences Heather Schopper
Class of 2016 University of Iowa Carver College of Medicine
Class of 2017
Rachelle Dugue, PhD
SUNY Downstate Medical Center
Harrison To, MD
Class of 2018
Resident, Department of Anesthesiology 
Reed Gilbow, MD University of California, San Diego
Resident, Department of Otolaryngology–Head and Neck Surgery
Elisa Walsh
University of Virginia School of Medicine
Harvard Medical School
Thomas P. Howard Class of 2017
Harvard Medical School
Class of 2020 Benjamin Weisenthal, MD
Resident, Department of Orthopaedic Surgery and
Toufic R. Jildeh, MD
Rehabilitation 
Resident, Department of Orthopaedic Surgery
Vanderbilt University Medical Center 
Henry Ford Hospital
Zachary Johnson, MD Wenhui Zhou
Resident, Department of Neurological Surgery Tufts University School of Medicine
University of Texas Southwestern Medical Center Class of 2019
James J. Jones Jr., MD Andrew Zureick
Resident, Transitional Year Department University of Michigan Medical School
San Antonio Military Medical Center Class of 2018
vii
FACULTY REVIEWERS
Zafia Anklesaria, MD Peter Marks, MD, PhD
Fellow, Division of Pulmonary and Critical Care Medicine Center for Biologics Evaluation and Research
Department of Medicine U.S. Food and Drug Administration
David Geffen School of Medicine at UCLA
Kathryn Melamed, MD
Fellow, Pulmonary and Critical Care Medicine
Mary Beth Babos, PharmD
David Geffen School of Medicine at UCLA
Associate Professor of Pharmacotherapy
DeBusk College of Osteopathic Medicine Jeannine Rahimian, MD, MBA
Lincoln Memorial University Associate Professor, Obstetrics and Gynecology
David Geffen School of Medicine at UCLA
Brooks D. Cash, MD
Soroush Rais-Bahrami, MD
Professor of Medicine, Division of Gastroenterology
Assistant Professor, Urology and Radiology
University of South Alabama School of Medicine
The University of Alabama at Birmingham School of Medicine
Ammar Chaudhry, MD Melanie Schorr, MD
Neuroradiologist, Department of Radiology Assistant in Medicine, Department of Medicine
Johns Hopkins Medical Institute Massachusetts General Hospital
Jaimini Chauhan, MD Prashant Vaishnava, MD
Physician, Geriatric Psychiatry and Adult Psychiatry Assistant Professor, Department of Medicine
Lincoln Medical and Mental Health Center Mount Sinai Hospital and Icahn School of Medicine
Weill Cornell Medical College Tisha Wang, MD
Associate Clinical Professor, Division of Pulmonary and Critical
Jeffrey J. Gold, MD, PhD
Care Medicine
Associate Professor, Department of Neurology
Department of Medicine
University of California, San Diego School of Medicine
David Geffen School of Medicine at UCLA
Nancy Hsu, MD Adam Weinstein, MD
Fellow, Pulmonary and Critical Care Medicine Assistant Professor, Pediatric Nephrology
David Geffen School of Medicine at UCLA Geisel School of Medicine at Dartmouth
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Preface
With this third edition of First Aid for the Basic Sciences: Organ Systems, we continue
our commitment to providing students with the most useful and up-to-date prepara-
tion guides for the USMLE Step 1. For the past year, a team of authors and editors
have worked to update and further improve this third edition. This edition represents
a major revision in many ways.
■ Every page has been carefully reviewed and updated to reflect the most high-yield
material for the Step 1 exam.
■ New high-yield figures, tables, and mnemonics have been incorporated.
■ Margin elements, including flashcards, have been added to assist in optimizing the
studying process.
■ Hundreds of user comments and suggestions have been incorporated.
■ Emphasis is on deeper understanding and integration of critical concepts. 
This book would not have been possible without the help of the hundreds of students
and faculty members who contributed their feedback and suggestions. We invite stu-
dents and faculty to please share their thoughts and ideas to help us improve First Aid
for the Basic Sciences: Organ Systems. (See How to Contribute, p. xiii.)
Louisville Tao Le
Boston William Hwang