Teratogenic

Definition

Teratogenic refers to any agent or factor that causes malformation of an embryo or fetus. Teratogens can lead to severe congenital abnormalities and developmental issues.

5 Must Know Facts For Your Next Test

1. Some viral infections of the respiratory tract can have teratogenic effects if contracted during pregnancy.
2. Rubella virus is a well-known teratogen that can cause severe birth defects if a pregnant woman is infected.
3. Teratogenic effects are most critical during the first trimester when organogenesis occurs.
4. Viruses like cytomegalovirus (CMV) and herpes simplex virus (HSV) are other examples of teratogens affecting fetal development.
5. Preventive measures, such as vaccinations, are essential to protect against teratogenic viral infections.

Review Questions

• What does it mean for an agent to be teratogenic?
• Which trimester is most critical regarding the teratogenic effects of viral infections?
• Name two viruses known for their teratogenic effects.

Related terms

Congenital Abnormalities: Structural or functional anomalies that occur during intrauterine life.

Organogenesis: The process by which the internal organs and structures of an organism develop.

Cytomegalovirus (CMV): A common virus that can cause disease in infants if passed from mother to fetus.