WebAug 3, 2024 · The embryonic period of development lasts from two weeks after conception through the eighth week, during which time the organism is known as an embryo. 1 At the ninth week post-conception, the fetal … WebJul 23, 2024 · In most cases, prenatal development occurs normally and follows the established patterns of development with little variation. However, a number of things, usually caused by genetics or environmental problems, can go wrong during this time. Genetic Problems Genetics plays a major role in development.

The First Two Weeks of Pregnancy - Verywell Family

WebThe brain is part of the central nervous system and it develops during the entire pregnancy. Major, structural brain development lasts until about 16 fetal weeks (18 gestational weeks). However, the brain continues to … WebThe germinal period (about 14 days in length) lasts from conception to implantation of the zygote (fertilized egg) in the lining of the uterus. During the first week after conception, … christian book on retirement

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WebThe germinal period (about 14 days in length) lasts from conception to implantation of the fertilized egg in the lining of the uterus (See Figure 2.5). At ejaculation millions of sperm are released into the vagina, but only a … WebA. at conceptionB. during the germinal periodC. during the embryonic periodD. during the fetal period A C. during the embryonic period 4 Q Which of the following is a consequence of maternal smoking during pregnancy? A. attention deficit hyperactivity disorderB. high birth weightC. autismD. schizophrenia A WebJan 21, 2010 · Prenatal development occurs in three stages: germinal, embryonic, and fetal. The germinal stage of pregnancy begins at the time of conception when the sperm fertilizes the egg. Both unite and form one zygote in your fallopian tubes. After fertilization, this zygote starts moving towards your uterus. christian book on grieving