What are 5 teratogens?
Teratogenic agents include infectious agents (rubella, cytomegalovirus, varicella, herpes simplex, toxoplasma, syphilis, etc.); physical agents (ionizing agents, hyperthermia); maternal health factors (diabetes, maternal PKU); environmental chemicals (organic mercury compounds, polychlorinated biphenyl or PCB.
What Teratology means?
Teratology is derived from the Greek noun teras, meaning monster, and historically has referred to the study of malformations early in life that result from exposure to chemicals such as mercury, lead, and other complex compounds.
What are teratogens in psychology class 11?
Teratogens are harmful environmental agents which are affecting the growth and development of the foetus. The common teratogens which are directly affecting the foetus are toxic chemicals and substances, radiation, pollutants.
What are teratogens Class 11?
What are behavioral teratogens?
Behavioral teratogens—teratogens that tend to harm the prenatal brain, affecting the future child’s intellectual and emotional functioning. à although all teratogens increase the risk of harm to the developing child, none always cause damage; the ultimate impact depends on the complex interplay of many factors.
What is a human teratogen?
A human teratogen is an agent that alters the growth or structure of the developing embryo or fetus, thereby causing birth defects.
What are the causes of teratogenicity?
Causes of teratogenesis can broadly be classified as:
- Toxic substances, such as, for humans, drugs in pregnancy and environmental toxins in pregnancy. Potassium iodide is a possible teratogen.
- Vertically transmitted infection.
- Lack of nutrients.
- Physical restraint.
- Genetic disorders.
- Alcohol consumption during pregnancy.
When are teratogens most harmful?
Time of exposure: Teratogens are most harmful early in pregnancy, starting about 10 to 14 days after conception to about 8 weeks into pregnancy. When is the most serious damage from teratogens likely to occur?
What are some teratogen examples?
ACE (angiotensin converting enzyme) inhibitors.
What are some examples of environmental teratogens?
angiotensin converting enzyme (ACE) inhibitors,such as Zestril and Prinivil.
Why are teratogens harmful?
Alcohol. Wine,beer,and all other types of alcohol can harm a baby during pregnancy.