what is the hole present in our heart when we in the uterus of our mother
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Explanation:
The ductus arteriosus is a normal blood vessel that connects two major arteries — the aorta and the pulmonary artery — that carry blood away from the heart. The lungs are not used while a fetus is in the womb because the baby gets oxygen directly from the mother's placenta.
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Patent ductus arteriosus (PDA) is an extra blood vessel found in babies before birth and just after birth. In most babies who have an otherwise normal heart, the PDA will shrink and close on its own in the first few days of life. If it stays open longer, it may cause extra blood to flow to the lungs.
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