0 ч 47 мин, 13 окт 2002 г. - First Trimester: Umbilical Cord
Описание:
During week 7 the umbilical cord develops. The umbilical cord is what connects the mother to its baby. It is the way of transportation of oxygen and nutrients for the baby. Waste is also disposed through the umbilical cord.
Добавлено на ленту времени:
Growth and Development Timeline, Jacky Villanueva
Neil Izenberg, Pregnancy Chart. KidsHealth.org, accessed fro...
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