What are environmental factors that may produce birth defects called?
Environmental Factors and Birth Defects
A teratogen is an environmental agent that can cause abnormalities in an exposed fetus. The effects depend on the nature of the teratogen, the timing at which the exposure occurs and, most likely, the genetic susceptibility of the mother and/or the fetus.
What factors can lead to birth defects?
The causes of some birth defects can be difficult or impossible to identify. However, certain behaviors greatly increase the risk of birth defects. These include smoking, using illegal drugs, and drinking alcohol while pregnant. Other factors, such as exposure to toxic chemicals or viruses, also increase risk.
What are environmental factors that affect pregnancy and child birth?
Environmental factors which have been implicated in adverse pregnancy outcome include smoking, video display terminals, anesthetic gases, antineoplastic drugs and exposure to lead, selenium and inorganic mercury.
What are four environmental hazards that can affect a fetus?
These chemicals include commonly known hazards such as lead, mercury, and environmental tobacco smoke, as well as some pesticides, solvents, products containing chlorine, and other chemicals referred to as “persistent organic pollutants.” The fetus is particularly vulnerable to environmental chemicals that can disrupt …
What are environmental factors?
Environmental factors include temperature, food, pollutants, population density, sound, light, and parasites. The diversity of environmental stresses that have been shown to cause an increase in asymmetry is probably not exclusive; many other kinds of stress might provide similar effects.
What are the 4 main causes of birth defects?
What causes birth defects?
- Genetic problems. One or more genes might have a change or mutation that results in them not working properly, such as in Fragile X syndrome. …
- Chromosomal problems. …
- Infections. …
- Exposure to medications, chemicals, or other agents during pregnancy.
What are the 5 most common birth defects?
The most common birth defects are:
- heart defects.
- cleft lip/palate.
- Down syndrome.
- spina bifida.
Can birth defects that are environmental be prevented?
Most birth defects can’t be prevented, but you can take some steps to reduce the likelihood of environmental effects. Remember to always discuss your concerns with your healthcare provider and follow their instructions regarding screening tests, medications, etc.
What is an example of an environmental influence during the prenatal stage?
Environmental influences ranging from radioactivity and stress in the outside world to drugs, chemicals, hormones, and viruses in the mother’s bloodstream can affect prenatal development. Such threats affect the health of the fetus in several ways.
What are some environmental factors that influence development?
Over the past 100 years, the study of environmental influences on human physical growth and development has focused on the influences of social and economic factors; family and household characteristics; urbanization/modernization; nutrition; and features of the physical environment such as altitude, temperature and …
What environmental influences can affect prenatal development quizlet?
-Important environmental influences involving the mother include nutrition, physical activity, smoking, intake of alcohol or other drugs, maternal illness, maternal stress, maternal age, and external environmental hazards, such as chemicals and radiation.