Prenatal development is an important period related to development compared to other periods. In prenatal development, an organism is totally dependent on the mother. The organism gets nutrients through the mother’s placenta. Many factors affect prenatal development. These factors are- teratogens, and maternal factors.
Teratogens
Teratogens are chemical, physical, and environmental agents that cause damage during the prenatal period. Both teratogens and maternal factors play an important role in prenatal development. Teratogens are very harmful compared to maternal factors. Teratogen is a Greek word teras, meaning malformation (Monstrosity). In teratogens, many factors are involved. They are:-
Diethylstilbestrol medication was used to prevent miscarriages. Mother’s daughter reached adolescence, in daughter’s high rates of cancer of the vagina and infertility. In young men showed an increased risk of genital abnormalities and cancer of the testes
Vitamin-A used by the mother. Vitamin A affects the embryo’s eyes, ears, skull, brain, and immune system.
Nonprescription depends on the mother’s choice. The pregnant mother used coffee and tea cola. They lead to a high risk of low birth weight.
The maternal factors also influence prenatal development. If women can regularly exercise ( Morning walk, Evening walk) then increase their birth weight. Examples of maternal factors. They are nutrition, emotional stress, blood type, maternal age, and previous births.
If a baby born Rh-positive leads to form antibodies to the foreign Rh protein and heart damage, mental retardation, infant death, and miscarriage.
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