Skip to Content
Medical Term:

ductus arteriosus


a fetal vessel connecting the left pulmonary artery with the descending aorta; in the first 2 months after birth, it normally changes into a fibrous cord, the ligamentum arteriosum; persistent postnatal patentcy is a correctable cardiovascular handicap.

Synonym(s): arterial canal, arterial duct, Botallo duct

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.