Prenatal development is the period in development from conception to the onset of labor. Perinatal period is the period beginning about the seventh month of pregnancy and continuing until about four weeks after birth. Postnatal development is the period in development the follows directly after birth. The germinal stage is the stage lasting about ten -fourteen days following conception before the fertilized egg becomes implanted in the uterine wall. The embryonic stage is the stage …showed first 75 words of 759 total…

…showed last 75 words of 759 total…the birth canal, the baby is ready to be born. The head rotates sideways after it emerges. Thus, allowing the placenta to fall. Infants born with low-birth weight are in luck. Despite the immediate obstacles facing low-birth weight babies, many become normal children and adults. Newborns and infants display a number of states. A large part of their time in engaged in REM sleep, a state that may provide them with stimulation even when asleep.