Human Growth and Development / Unit 2 HGD 0185 short lesson, about 20 seconds
The Fetal Period
Captions available
The idea
The fetal period fills the last seven months of pregnancy, a time of growth and refinement of structures already formed.
In practice
Lanugo, fine body hair, and vernix, a waxy protective coating, appearing around seventeen to twenty weeks.
Where people slip
Both usually disappear by about thirty-three to thirty-six weeks after conception.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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