Most of the sensitive periods for teratogenic injuries occur during the ____ period.

Question

Quizplus · Accepted Answer

Teratogenic injuries that can cause malformations in the developing fetus occur during the embryonic period, which lasts from the 3rd-8th week of gestation. During this time, the major organ systems are forming and are vulnerable to disruptions caused by environmental factors such as exposure to drugs, chemicals, and infections. The germinal period, which lasts from conception until implantation, is too early for teratogenic effects to occur, and the fetal period, which begins in the 9th week of gestation, is primarily focused on growth and maturation rather than organ formation. The perinatal period refers to the time immediately before and after birth and is not relevant to teratogenic injuries.

Most of the Sensitive Periods for Teratogenic Injuries Occur During