What name is given to the time period during which irreversible damage to the fetus may occur from specific events such as malnutrition or exposure to toxins First trimester Critical period?

The time period during which irreversible damage to the fetus may occur from specific events such as malnutrition or exposure to toxins is referred to as the "critical period." This phase is particularly crucial during the first trimester of pregnancy when the foundations for major organs and systems are being established. During this time, the fetus is highly sensitive to external factors that can disrupt normal development.