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the ligamentum arteriosum develops from the ductus arteriosis in the fetus/embryo. the ductus arteriosis is a bypass mechanism where blood is not transported to the lungs as they are not yet functional. after birth lungs are necessary (nolonger a placenta for oxygen) so ductus arteriosum closes up and becomes the ligamentum arteriosum
What else can I help you with?
Formen ovale Ductus arteriosus Ductus venosus what will these shunts become in a newborn?
In a newborn, the foramen ovale will close and become the fossa ovalis. The ductus arteriosus will close and become the ligamentum arteriosum. The ductus venosus will close and become the ligamentum venosum.
What is the function of ligamentum arteriosum?
It is the remnant of ductus arteriosus a blood vessel which bypassed the blood to the heart in foetus as the lungs are not functioning till the child is born. After birth once the lungs start functioning, it starts to close and is completely closed by second month.
What is the fate of the ductus arteriosus?
The ductus arteriousus connects the pulmonary artery with the descending thoracic aorta, allowing the blood to enter into the fetal circulation without going through the lungs. This structure closes at birth and becomes the "ligamentum arteriosus."
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be good
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