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what happens in the germinal period?
fertilized egg travels to uterus
blastocyst implants on wall
placenta begins to form
what happens in the fetal period?
external genitalia begins to form
stimulation of sound and light
begins to feel pain
at the end of the fetal period, how long is the fetus and how much will it weight approximately?
18-20 inches long and 6.5-7.5 lbs.
how much does the mother have to be dilated and effaced for expulsion?
10cm dilated and 100% effaced
what are the environmental factors that influence gestation?
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