High-Yield(TM) Embryology, Third Edition provides a concise, focused review of the most important embryology information needed for the USMLE Step 1. Chapters cover prefertilization events and the embryonic period, embryologic development of each organ system, chromosomal abnormalities, inherited diseases, teratology and more. To prepare students for the clinical vignettes on the USMLE, the book includes numerous clinical cases with words and phrases that patients use. A mini-atlas at the end of each chapter presents photographs, MRIs, CT scans, and radiographs of various congenital malformations.

1 Prefertilization Events ........................................................................................................1

2 Week 1 (Days 1-7) .........................................................................................................6

3 Week 2 (Days 8-14).........................................................................................................11

4 Embryonic Period (Weeks 3-8) ......................................................................................15

5 Placenta, Amniotic Fluid, and Umbilical Cord ................................................................19

6 Cardiovascular System ......................................................................................................28

7 Digestive System ............................................................................39

8 Urinary System ........................................................................................................54

9 Female Reproductive System ....................................................................................................65

10 Male Reproductive System ..................................................................................................71

11 Respiratory System ....................................................................................................79

12 Head and Neck ..................................................................................................................85

13 Nervous System .....................................................................................................92

14 Ear.....................................................................................................107

15 Eye .......................................................................................................112

16 Body Cavities ......................................................................................................119

17 Integumentary System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123

18 Skeletal System ....................................................................................................131

19 Muscular System .............................................................................140

20 Pregnancy....................................................................................................144

21 Numerical Chromosomal Anomalies ..................................................................................................148

22 Structural Chromosomal Anomalies ...............................................................................152

23 Single-Gene Inherited Diseases .............................................................................163

24 Multifactorial Inherited Diseases ..............................................................................169

25 Teratology ..................................................................................................170