19
Jan
Periods Of Prenatal Development. Because a woman may not know that she is pregnant she may be poorly nourished. Major structural brain development lasts until about 16 fetal weeks 18 gestational weeks. She may also consume alcohol or caffeine in excess which may affect the growing embryo or fetus. It is customary to divide human development into prenatal before birth and postnatal after birth periods.
The brain is part of the central nervous system and it develops during the entire pregnancy. Childhood adulthood and old age. Infancy childhood adolescence and. ZygoticGerminal Period Begins when egg is fertilized in the fallopian tube Period of rapid cell division Ends 2 weeks later when the zygote is implanted in the wall of the uterus Chapter II- Child and Adolescent Period. This can vary from 180 to 334 days. Human gestation encompasses period of time from conception to birth.
Prenatal development is the process by which a baby develops inside the mothers womb.
Think about the life span and make a list of what you would consider the periods of development. Because a woman may not know that she is pregnant she may be poorly nourished. This period is generally divided into three stages. Explosive rate of growth and development which is unparalleled to any other point in the lifespan. The prenatal period is the period of time before birth. It is customary to divide human development into prenatal before birth and postnatal after birth periods.