What are teratogens in psychology class 11?
teratogens environmental agents that cause deviations in normal development that can lead to serious abnormalities or death.
What is teratogen in psychology?
n. an agent that induces developmental abnormalities in a fetus.
What are teratogens give examples Class 11?
Teratogens are substances that may produce physical or functional defects in the human embryo or fetus after the pregnant woman is exposed to the substance. Alcohol and cocaine are examples of such substances.
What are teratogens 12?
A drug or agent that produces foetal abnormalities.
What are teratogens and examples?
A teratogen is something that can cause birth defects or abnormalities in a developing embryo or fetus upon exposure. Teratogens include some medications, recreational drugs, tobacco products, chemicals, alcohol, certain infections, and in some cases, health problems such as uncontrolled diabetes in pregnant people.
What are the principles of teratogens?
In considering the effects of drugs on pregnancy, it is important to remember the 6 principles of teratology: genetic susceptibility, development stage, mechanisms, end points, access, and dose response.
What are 2 common teratogens?
Alcohol and smoking are two common teratogens. Exposure to either of them can lead to developmental anomalies, miscarriage, stillbirth, preterm labor, and a variety of other pregnancy complications.
What are 5 types of 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 is a teratogen psych quizlet?
Teratogens : are agents and conditions, including viruses, drugs, and chemicals that can impair prenatal development and result in birth defects or even death.
What are teratogens in pharmacognosy?
Teratogenic drugs: A teratogen is an agent that can disturb the development of the embryo or fetus. Teratogens halt the pregnancy or produce a congenital malformation (a birth defect). Classes of teratogens include radiation, maternal infections, chemicals, and drugs.
What are some examples of environmental teratogens?
Teratogenic agents can be environmental chemicals, maternal metabolic factors, drugs, or infections. A number of environmental chemicals have been linked with birth defects in exposed fetuses including lead, methyl mercury, and polychlorinated biphenyls.
Which of the following are examples of teratogens quizlet?
What are some examples of teratogens? Drugs of abuse, prescription medications, environmental contaminants, and diseases. You just studied 18 terms!
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. Genetics: Sometimes, the pregnant person’s or the baby’s unique genetics protect them or make them more vulnerable to certain teratogens.
When do teratogens have their greatest effects?
The embryonic period, during which organogenesis takes place, occurs between implantation at around 14 days to around 60 days postconception. This is usually the most sensitive period to teratogenesis when exposure to a teratogenic agent has the greatest likelihood of producing a malformation.
Is Thalidomide a teratogen?
Thalidomide is a potent teratogen that induces a range of birth defects, most commonly of the developing limbs.