About three days after a human egg is fertilized, it passes through the fallopian tunnel and reaches the uterus, where it spends about four days floating in the uterus’s fluids, after which it begins to implant itself into the uterine wall. By the 12th day, it is completely embedded. Prior to implantation, the embryo draws on its own reserves and those present in the fluids of the fallopian tube and uterus for sustenance. Other substances, like alcohol, may be present in these fluids, but there is little evidence these foreign substances adversely influence embryonic development.
KeywordsAlcohol Abuse Heavy Drinking Alcohol Exposure Fetal Alcohol Syndrome Unborn Child
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