Zygote-> Embryo -> Fetus
Prenatal development actually begins when the first initial cells divide. Development continues daily until the baby is born. There are differing opinions about this and it is somewhat subject to debate.
Agents that have a negative effect on prenatal development are called teratogens. These can include drugs, alcohol, certain medications, infections, and environmental pollutants that can interfere with the normal development of the fetus.
Factors that can affect prenatal development include the mother's health, nutrition, exposure to harmful substances (such as drugs and alcohol), genetics, and stress levels. Additionally, environmental factors like pollution and infections can also impact the development of the fetus.
The embryonic stage, which lasts from fertilization until around 8 weeks, is the most rapid period of prenatal development in humans. This is when the major organs and systems of the body begin to form.
The germinal period is the shortest period of prenatal development, lasting approximately two weeks. This period begins at fertilization when the egg is fertilized by sperm and ends when the fertilized egg attaches to the uterine wall.
Cephalocaudal
The fetal period of development occurs during the third stage of prenatal development, which is the fetal stage.
distinguish between prenatal & postnatal
what is sequence of development
During prenatal development, a particular organ or body part is most vulnerable to exposure to teratogens during its:
The fetal period occurs during the third stage of prenatal development.
First Stage: The first two weeks after conception are known as the Germinal stage. Second Stage: The next six weeks of development are known as the Embryonic stage. Third Stage: The remainder of prenatal development is known as the Fetal stage.
Alcohol
Embryology
fetus
The fetal period.
True