ductus arteriosus(redirected from Ductus arteriosum)
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Related to Ductus arteriosum: patent ductus arteriosus, foramen ovale, fetal circulation, ductus venosus
duc·tus ar·te·ri·o·sus(dŭk′təs är-tîr′ē-ō′səs)
A fetal blood vessel that connects the left pulmonary artery with the descending aorta and that normally closes at birth.
[Modern Latin : ductus, duct (from Latin, act of leading; see duct) + artēriōsus, arterial (from Latin artēria, artery; see artery + -ōsus, adj. suff.)]
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|Noun||1.||ductus arteriosus - a blood vessel in a fetus that bypasses pulmonary circulation by connecting the pulmonary artery directly to the ascending aorta; normally closes at birth|
fetus, foetus - an unborn or unhatched vertebrate in the later stages of development showing the main recognizable features of the mature animal
blood vessel - a vessel in which blood circulates
patent ductus arteriosus - a ductus arteriosus that failed to close at birth; may require surgical correction