Pregnancy
Pregnancy is a state in which a woman carries a fertilized egg inside her body. After the egg is fertilized by a sperm and then implanted in the lining of the uterus, it develops into the pl...
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Pregnancy, Maternal Physiological and Anatomical Changes
During pregnancy, the metabolic demands brought on by the fetus, placenta, and uterus, along with the increase of pregnancy hormones and, latte...
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Respiratory System, Embryological Development
The respiratory system, and the lungs in particular, are the product of a set of complex developmental interactions between two distinct tissues, the endo...
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Pregnancy
Pregnancy is the period from conception to birth. After the egg is fertilized by a sperm and then implanted in the lining of the uterus, it develops into the placenta and embryo, and later i...
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Pregnancy
Period of time from conception to birth.
Pregnancy normally lasts 40 weeks and spans the time from the fertilization of a mother's egg to the birth
Teenage Pregnancy
In the United Sta...
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