The ductus aeriosus closes anatomically within:-
Correct Answer: 10 - 21 days after bih
Description: - Anatomical closure of ductus aeriosus occurs within 10 to 21 days after bih. Occurs by proliferation of its intima cells - Functional closure of ductus aeriosus occurs immediately after bih by smooth muscle contraction which occurs as a result of increase in oxygen saturation.
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Pediatrics
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