Developmental Tables Carnegie Stages of Early Human Embryonic Development (Weeks 1-8) Major Developmental Events During the Fetal Period PART I Early Development and the Fetal-Maternal Relationship CHAPTER 1 Getting Ready for Pregnancy Gametogenesis Preparation of the Female Reproductive Tract For Pregnancy Hormonal Interaction Involved with Reproduction in Males CHAPTER 2 Transport of Gametes and Fertilization Ovulation and Egg and Sperm Transport Fertilization CHAPTER 3 Cleavage and Implantation Cleavage Embryo Transport and Implantation CHAPTER 4 Molecular Basis for Embryonic Development Transcription Factors Signaling Molecules Receptor Molecules Signal Transduction Retinoic Acid Developmental Genes and Cancer CHAPTER 5 Formation of Germ Layers and Early Derivatives Two-Germ-Layer Stage Gastrulation and the Three Embryonic Germ Layers Induction of the Nervous System Cell Adhesion Molecules CHAPTER 6 Establishment of the Basic Embryonic Body Plan Development of the Ectodermal Germ Layer Development of the Mesodermal Germ Layer Development of the Endodermal Germ Layer Basic Structure of 4-Week Old Embryo CHAPTER 7 Placenta and Extraembryonic Membranes Extraembryonic Tissues Chorion and Placenta Placental Physiology Placenta and Membranes in Multiple Pregnancies CHAPTER 8 Developmental Disorders: Causes, Mechanisms, and Patterns General Principles Causes of Malformations Developmental Disturbances Resulting in Malformations PART II Development of the Body Systems CHAPTER 9 Integumentary, Skeletal and Muscular Systems Integumentary System Skeleton Muscular System CHAPTER 10 Limb Development Initiation of Limb Development Regulative Properties and Axial Determination Outgrowth of Limb Bud Morphogenetic Control of Early Limb Development Development of Limb Tissues CHAPTER 11 Nervous System Establishment of Nervous System Early Shaping of Nervous System Histogenesis Within the Central Nervous System Craniocaudal Pattern Formation and Segmentation Peripheral Nervous System Autonomic Nervous System Later Structural Changes in the Central Nervous System Ventricles, Meninges, and Cerebrospinal Fluid Formation Cranial Nerves Development of Neural Function CHAPTER 12 Neural Crest Origins of Neural Crest Migrations of Neural Crest Differentiation of Neural Crest Cells Major Divisions of Neural Crest CHAPTER 13 Sense Organs Eye Ear CHAPTER 14 Head and Neck Early Development of Head and Neck Establishing the Pattern of the Craniofacial Region Development of Facial Region Formation of the Teeth Development of Pharynx and Its Derivatives CHAPTER 15 Digestive and Respiratory Systems and Body Cavities Digestive System Respiratory System Body Cavities CHAPTER 16 Urogenital System Urinary System Genital System Sexual Duct System External Genitalia CHAPTER 17 Cardiovascular System Developmental of Blood and the Vascular System Developmental and Partitioning of Heart Fetal Circulation CHAPTER 18 Fetal Period and Birth Growth and Form of Fetus Fetal Physiology Parturition Adaptations to Postnatal Life Overview Answers to Clinical Vignettes and Review Questions Index.