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 are environmental factors that can cause birth defects?
Among other environmental exposures with some incriminating evidence are other nutrient imbalances, maternal smoking and alcohol use, pesticides, tap water disinfection by-products, plastics and plastics components, solvents, metals, and numerous air pollutants (see table, p.
What are the environmental factors that affect the unborn child?
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 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.
Which is an example of an environmental influence on development?
Drugs and Chemicals. The presence of drugs or chemicals in an organism’s environment can also influence gene expression in the organism. Cyclops fish are a dramatic example of the way in which an environmental chemical can affect development.
What are the six environmental factors?
These are: Demographic, Economic, Political, Ecological, Socio-Cultural, and Technological forces. This can easily be remembered: the DESTEP model, also called DEPEST model, helps to consider the different factors of the Macro Environment.
What types of environmental factors that affect health?
8 Environmental Factors that Affect Health
- Chemical safety.
- Air pollution.
- Climate change and natural disasters.
- Diseases caused by microbes.
- Lack of access to health care.
- Infrastructure issues.
- Poor water quality.
- Global environmental issues.
What are the 10 environmental factors?
Temperature, oxygen, pH, water activity, pressure, radiation, lack of nutrients…these are the primary ones.
How do environmental factors affect child development?
An enriching and stimulating home environment fosters healthy growth and brain development by providing a child with love, emotional support, and opportunities for learning and exploration. In families where only one parent is present, there are often fewer economic and emotional resources.
Which birth defect comes from both hereditary and environmental factors?
ONTDs occur in children without a prior family history of these defects in most cases. ONTDs result from a combination of genes inherited from both parents, coupled with environmental factors.
How might environmental influences affect newborn growth and development?
Frequently, physical environmental factors, like exposure to toxins or substances before or after birth, can impact a child’s physical development. Problems associated with this kind of exposure might be low birth weight, premature birth, or major long-term medical problems.