An introduction to the basic concepts and principles which underlie the first eight weeks of human development. Each chapter includes revision-orientated summary boxes, as well as sections detailing clinical examples relevant to the topic.
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The Second Week
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abdominal abnormal amniotic Anat anomalies aortic arch arteries atrium axons blastocyst blood body wall bone brain called canal cardiac cardinal vein cartilage caudal cavity cervical chick chorionic chromosome Clinical Applications cranial nerve defects derived differentiate distal dorsal aorta ectoderm embryo endoderm Experimental Principles section female fetal fetus fibers folds follicle fourth week fuse ganglia ganglion gene genetic germ cells gives rise glands grow growth gut tube human induce inferior inner lateral layer limb bud male malformations membrane mesencephalon mesenchyme mesoderm mesonephric ducts migrate mouse muscles nasal neural crest cells neural plate neural tube neurons normal notochord oocyte optic pair pharyngeal arches placenta placode posterior primary primitive proliferation pulmonary region result retina rhombencephalon sclerotome segment sensory septum sex cords sinus sixth week somites spinal cord structures syndrome thoracic tion tissue ureteric bud urogenital vein ventral ventricle ventricular vertebral vesicle vitelline yolk sac