Before we are born: basic embryology and birth defects |
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Contents
Chapter | 1 |
REPRODUCTION | 9 |
THE FIRST WEEK OF DEVELOPMENT | 20 |
Copyright | |
18 other sections not shown
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Common terms and phrases
abnormalities amnion aortic arch arteries atrium birth blastocyst blood body bone brain branchial arches canal cartilage caudal cecum Chapter chorionic sac chromosomes cleft cloaca congenital malformations cranial decidua defect derived diverticulum Drawings illustrating ductus ectoderm embryo embryonic disc endoderm endometrial epithelium extraembryonic coelom female fertilization fetal period fetus Figure fluid folds follicle foramen ovale foregut fourth week gives rise glands groove heart tube kidney Lateral view layer level of section limb male maternal median membrane mesenchyme mesentery mesoderm mesonephric duct metencephalon midgut muscle nasal neural tube normal notochord occurs oocyte optic cup ovary ovum palate pericardial cavity pharyngeal pouch Photograph placenta plate posterior primary primitive pulmonary septum primum showing somites sperm spinal cord splanchnic stages stalk surface ectoderm tion tissue Transverse section trophoblast truncus arteriosus tubules umbilical cord ureteric bud urorectal septum uterine tube uterus ventral ventricle vesicles vessels wall yolk sac zygote