Part 1: General Embryology 1. Introduction to Molecular Regulation and Signaling 2. Gametogenesis: Conversion of Germ Cells into Male and Female Gametes 3. First Week of Development: Ovulation to Implantation 4. Second Week of Development: Bilaminar Germ Disc 5. Third Week of Development: Trilaminar Germ Disc 6. Third to Eight Weeks: The Embryonic Period 7. The Gut Tube and the Body Cavities 8. Third Month to Birth: The Fetus and Placenta 9. Birth Defects and Prenatal Diagnosis Part 2: Systems-Based Embryology 10. The Axial Skeleton 11. Muscular System 12. Limbs 13. Cardiovascular System 14. Respiratory System 15. Digestive System 16. Urogenital System 17. Head and Neck 18. Central Nervous System 19. Ear 20. Eye 21. Integumentary System Part 3: Appendix Answers to Problems Figure Credits Glossary of Key Terms Index