arterial ligament


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lig·a·men·tum ar·te·ri·o·'sum

[TA]
fibrous remnant of the ductus arteriosus extending between the aortic arch and the pulmonary trunk.

arterial ligament

A fibrous cord extending from the pulmonary artery to the arch of the aorta, the remains of the ductus arteriosus of the fetus.
See also: ligament