The Stages Of Prenatal Development Essay

The Stages Of Prenatal Development Essay

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The germinal stage of prenatal development takes place during conception and until two weeks afterward. During this stage, fertilized eggs, or zygotes, divide, multiply, and eventually specialize. The zygote then attaches itself to the uterine wall approximately ten days after conception. The embryonic stage of prenatal development begins after this time, as the bundle of cells forms into two parts. The internal cells become the embryo, the human organism at this time. The external cells become the placenta, which provides nutrients and oxygen for the baby. Formation of organs takes place during the embryonic stage, and they also begin to operate. Lastly, the embryonic stage begins around two weeks after conception through roughly eight weeks. After the embryonic stage, the fetal stage begins and lasts until the birth of the baby. During this stage, the embryo becomes known as a fetus. At twenty-four weeks, the organs of the fetus have developed well enough for a possibility of survival outside of the womb.
2. The placenta not only provides nutrients for the growing embryo and fetus, but it also aids in stopping any dangerous agents from reaching the fetus. Viruses, drugs, and other substances that can harm the embryo or fetus during prenatal development, also known as teratogens, sometimes glide past the placenta’s monitors and leave negative effects on the wellbeing of the fetus.
3. Jean Piaget thought that children’s minds development in four stages: sensorimotor, preoperational, concrete operational, and formal operational. The sensorimotor stage begins at birth and lasts for two years. During this stage, babies interact with their environments through their senses. Piaget believed babies, before six months of age, liv...


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...hers and their children differ due to social factors, children also become upset when their father leaves a room, just like they do when their mother leaves. Additionally, single fathers act and take on the same roles and duties of a single mother, and they experience the same distress when children leave them. Therefore, the findings of “Father Care” suggest that the view of father care has shifted as fathers become more proactive in the care of their children. Additionally, “Children and Divorce” discusses the effects of divorce on children. The article discusses a study done over a few decades on children before and after the divorce of their parents. The study suggests that children of divorced parents experience more problems overall, even with controlled factors. Although the numbers in both articles predict certain outcomes, they still do not prove causation.

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The Stages Of Prenatal Development Essay

- The germinal stage of prenatal development takes place during conception and until two weeks afterward. During this stage, fertilized eggs, or zygotes, divide, multiply, and eventually specialize. The zygote then attaches itself to the uterine wall approximately ten days after conception. The embryonic stage of prenatal development begins after this time, as the bundle of cells forms into two parts. The internal cells become the embryo, the human organism at this time. The external cells become the placenta, which provides nutrients and oxygen for the baby....   [tags: Jean Piaget, Theory of cognitive development]

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