The placenta and fetal circulation: a hidden miracle of life
In short: This animation explains how the placenta forms and how the fetal circulatory system works, including the ductus venosus, foramen ovale, and ductus arteriosus. It also covers the changes that happen when a baby is born.
These structures allow the fetus to receive oxygen and nutrients from the mother while bypassing the lungs, which are not yet functional. Upon birth, these shunts close, marking a critical transition to independent breathing and circulation.
The animation provides a clear visual of the placenta's role in nutrient and gas exchange, as well as the unique pathways of fetal blood flow. It highlights the physiological changes that occur after birth, such as the closure of the foramen ovale and the transformation of the ductus arteriosus into the ligamentum arteriosum. These changes are essential for the newborn's adaptation to life outside the womb.
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Sources
- Summary by Intellect · source: Embryology: Development of the Placenta and Fetal Circulation, Animation
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