In the developing fetus, the ductus arteriosus (DA), also called the ductus Botalli, is a blood vessel connecting the pulmonary artery to the aortic arch. It allows most of the blood from the right ventricle to bypass the fetus's fluid-filled non-functioning lungs. Upon closure at birth, it becomes the ligamentum arteriosum. There are two other fetal shunts, the ductus venosus and the foramen ovale.

In the developing fetus, the ductus arteriosus (DA), also called the ductus Botalli, is a blood vessel connecting the pulmonary artery to the aortic arch. It allows most of the blood from the right ventricle to bypass the fetus's fluid-filled non-functioning lungs. Upon closure at birth, it becomes the ligamentum arteriosum. There are two other fetal shunts, the ductus venosus and the foramen ovale.

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infant heart | Congenital Heart Defects - Patent Ductus Arteriosus. Depicts fetal ...
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Patent Ductus Arteriosus.  When the ductus arteriosus does not close, some oxygenated blood that should be going into circulation gets shunted back into the heart.

Patent Ductus Arteriosus. When the ductus arteriosus does not close, some oxygenated blood that should be going into circulation gets shunted back into the heart.

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patent ductus arteriosus- Another Sean   "issue" that was repaired during his first open heart surgery @ 9 days old.

patent ductus arteriosus- Another Sean "issue" that was repaired during his first open heart surgery @ 9 days old.

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