Der Shunt über den Ductus arteriosus ist geschlossen und bleibt als Ligamentum arteriosus bestehen.
Die Abnabelung des Kindes führt dazu, dass die Vasa umbilicales hauptsächlich durch aktive Konstriktion ihrer Tunica muscularis funktionell obliterieren.
embryology.chAfter a few weeks or months this shunt via the ductus arteriosus is definitively obliterated and the remnant is known as the ligamentum arteriosus.
The severing of the baby s umbilical cord leads to the obliteration of the umbilical vessels, primarily through active constriction of their muscular layer.
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