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The first three months, which is the time of organ generation, is the riskiest time.
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What trimester is the fetus most susceptible to the detrimental effects of alcohol on development?
the first trimester
When does a teratogen affects the fetus most seriously?
in the first trimester
What is the vulnerability or prenatal development?
During prenatal development, a particular organ or body part is most vulnerable to exposure to teratogens during its:
Teratogen affects the fetus most seriously?
A teratogen is any environmental agent capable of causing a birth defect. It is thought teratogens cause the most serious damage at about 10-14 days after conception. However, any embryotic system is vulnerable, especially during the time it is forming and developing.
During what trimester is toxoplasmosis most dangerous to the fetus?
The fetal infection rate is above 60% if maternal infection occurs during the third trimester, but the most severe fetal complications occur with first-trimester infection.
Why is fetus slow growing in third trimester?
Because he or she has already done most of their growing in the second trimester. Also, there is less space in the uterus by the third trimester, so there is less space to grow
Why do women miscarriage?
In the first trimester when most women miscarry it s because the fetus is not correct developed to make it further.
What months do most common for miscarriage?
The first trimester and then it's usually because the embryo/fetus is not viable but damaged by nature somehow.
Why it is important for the pregnant mother to avoid many substances during the first trimester of pregnancy?
Any substance that the mother consumes is going to wind up in her blood stream, and it will pass through the placenta to the fetus. The development of the fetus is at its most sensitive during the first trimester, and toxic substances such as alcohol can cause abnormalities.
Why do you think a fetus is most risk during the first trimester?
All organs of the Fetus are formed during first three months of Pregnancy. So drugs taken during this period have high chances of 'Structural' damage to the Fetus. Afterward 'Functional' damage can occur.So your Doctor will be very careful about drugs given in First Trimester ofPregnancy.
What are the most important changes that take place in a fetus during the last two months of pregnancy?
Brain development, lung maturation and overall growth are the main changes in the last trimester.
At what point in a woman's pregnancy does she normally get an ultrasound?
Most pregnant women get an ultrasound at the second trimester of pregnancy where the young fetus is most visible but it is possible to get an early ultrasound in case there may be any complications in early pregnancy.
