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Elena-2011 [213]
2 years ago
13

A vessel called the _____________ exists only during fetal development and closes to become a hepatic ligament following birth.

Health
1 answer:
ale4655 [162]2 years ago
4 0

A vessel called the ductus venous exists only during fetal development and closes to become a hepatic ligament following birth.

Normal foetal circulation depends on the ductus venosus, a blockage that enables oxygenated blood inside the umbilical vein to skip the liver. Blood is oxygenated inside the placenta and then passes through the ductus venosus on its way to the right atrium and then the inferior vena cava. The left atrium is where this oxygenated blood is distributed throughout the body after passing through the foramen ovale, an entrance between the atria. In order to maintain this special circulation pattern, the ductus venosus is crucial. To ensure proper blood flow through these shunts, foetal circulation studies using Doppler ultrasound or MRI are performed. If there is impedance or lack of flow through these shunts, it may correlate to aneuploidies, cardiovascular defects, and/or other post pregnancy disease states.

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