what is duct wall in heat transfer?
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The arterial duct (ductus arteriosus) is a short blood vessel connecting the two main arteries of the heart -
the aorta and the pulmonary artery.
Before a baby is born the arterial duct allows blood to go around their lungs.
If the duct is small there is a very small risk of damage to the heart or lungs.
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because your duct relesae sperm on heating from testes though penis
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